Home / 22,632.78-31,233.56-12,561.86

Finding the Fourth Proportional to 22,632.78, 31,233.56 and 12,561.86

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Solution

The fourth proportional to 22,632.78, 31,233.56 and 12,561.86 is: 17,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,632.78 : 31,233.56 = 12,561.86 : x
  2. Step 2: Convert to fraction form
    22,632.78/31,233.56 = 12,561.86/x
  3. Step 3: Cross multiply
    22,632.78x = 31,233.56 × 12,561.86
  4. Step 4: Simplify right side
    22,632.78x = 392,351,608.02
  5. Step 5: Solve for x
    x = 392,351,608.02/22,632.78
  6. Step 6: Final answer
    x = 17,335.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.