Home / 40,421.38-55,781.56-23,428.92

Finding the Fourth Proportional to 40,421.38, 55,781.56 and 23,428.92

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Solution

The fourth proportional to 40,421.38, 55,781.56 and 23,428.92 is: 32,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.38 : 55,781.56 = 23,428.92 : x
  2. Step 2: Convert to fraction form
    40,421.38/55,781.56 = 23,428.92/x
  3. Step 3: Cross multiply
    40,421.38x = 55,781.56 × 23,428.92
  4. Step 4: Simplify right side
    40,421.38x = 1,306,901,706.72
  5. Step 5: Solve for x
    x = 1,306,901,706.72/40,421.38
  6. Step 6: Final answer
    x = 32,331.94

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Double scale
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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.