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KALKULATOR

Kalkulator Rumus Tiga (Perbandingan Senilai & Berbalik)

Selesaikan soal perbandingan proporsional langsung (senilai) atau tidak langsung (berbalik nilai) dengan memasukkan 3 nilai untuk menemukan nilai ke-4 yang belum diketahui.

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Pratinjau

Aturan tiga

A berbanding B seperti C berbanding X.

Perbandingan proporsi

Hasil

Nilai yang hilang (X)
20
Rasio
16:9
Desimal
1.778
Persen
177.78%

Proporsi dihitung.

Cara kerja

  1. Masukkan data Anda

    Isi nilai yang diperlukan, tempel teks Anda, atau unggah file yang ingin diproses.

  2. Lihat hasil seketika

    Sebagian besar alat diperbarui secara langsung saat Anda mengetik; beberapa menggunakan satu tombol tindakan.

  3. Gunakan hasil Anda

    Salin, unduh, atau bagikan hasil yang dihasilkan — Anda selalu memiliki kendali penuh atas data Anda.

Privasi dan pemrosesan data — Berjalan secara lokal di browser Anda. Alat ini tidak mengunggah data Anda.

Apa itu Kalkulator Rumus Tiga (Perbandingan Senilai & Berbalik)?

Find the fourth value in a direct proportion, or compare two values to see their ratio, decimal, and percentage.

PAHAMI CARA KERJA ALAT

How to use the rule of three calculator

When to use it

Use this calculator when three proportional values are known and you need the missing one, such as price versus quantity or distance versus time.

Steps

  • Enter the base pair of values.
  • Enter the known value in the second pair.
  • Read the calculated missing value and copy it if needed.

Formula

Direct proportion
X = (B x C) / A

Worked example

Missing value
x = (b * c) / a

If 4 items cost 10, what do 7 cost?

The proportional result is 17.5.

(10 * 7) / 4 = 17.5

Proportion notes

Rule-of-three assumes a direct linear relationship. If the real-world relationship is not proportional, the result is only a rough shortcut.

Pertanyaan yang Sering Diajukan (FAQ)

Does it handle inverse proportion?

This first version is focused on direct proportion, the most common everyday case.

Can I compare two numbers without the rule of three?

Yes. The proportion section shows ratio, decimal value, and percentage.

Can I use decimal values?

Yes. Decimal values are supported as long as they form a valid calculation.

Can I use zero or negative values?

No. This tool only accepts positive finite values because it models direct proportion and ratio comparison.

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