Home / 39,229.17-54,136.33-21,324.13

Finding the Fourth Proportional to 39,229.17, 54,136.33 and 21,324.13

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Solution

The fourth proportional to 39,229.17, 54,136.33 and 21,324.13 is: 29,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.17 : 54,136.33 = 21,324.13 : x
  2. Step 2: Convert to fraction form
    39,229.17/54,136.33 = 21,324.13/x
  3. Step 3: Cross multiply
    39,229.17x = 54,136.33 × 21,324.13
  4. Step 4: Simplify right side
    39,229.17x = 1,154,410,138.64
  5. Step 5: Solve for x
    x = 1,154,410,138.64/39,229.17
  6. Step 6: Final answer
    x = 29,427.34

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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.