Home / 39,306.47-54,244.08-21,402.23

Finding the Fourth Proportional to 39,306.47, 54,244.08 and 21,402.23

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Solution

The fourth proportional to 39,306.47, 54,244.08 and 21,402.23 is: 29,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,306.47 : 54,244.08 = 21,402.23 : x
  2. Step 2: Convert to fraction form
    39,306.47/54,244.08 = 21,402.23/x
  3. Step 3: Cross multiply
    39,306.47x = 54,244.08 × 21,402.23
  4. Step 4: Simplify right side
    39,306.47x = 1,160,944,005.08
  5. Step 5: Solve for x
    x = 1,160,944,005.08/39,306.47
  6. Step 6: Final answer
    x = 29,535.70

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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.