Home / 39,229.92-54,136.76-21,324.47

Finding the Fourth Proportional to 39,229.92, 54,136.76 and 21,324.47

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Solution

The fourth proportional to 39,229.92, 54,136.76 and 21,324.47 is: 29,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.92 : 54,136.76 = 21,324.47 : x
  2. Step 2: Convert to fraction form
    39,229.92/54,136.76 = 21,324.47/x
  3. Step 3: Cross multiply
    39,229.92x = 54,136.76 × 21,324.47
  4. Step 4: Simplify right side
    39,229.92x = 1,154,437,337.21
  5. Step 5: Solve for x
    x = 1,154,437,337.21/39,229.92
  6. Step 6: Final answer
    x = 29,427.47

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Double scale
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Similar ratio
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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.