Home / 39,213.92-54,115.12-22,218.13

Finding the Fourth Proportional to 39,213.92, 54,115.12 and 22,218.13

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Solution

The fourth proportional to 39,213.92, 54,115.12 and 22,218.13 is: 30,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,213.92 : 54,115.12 = 22,218.13 : x
  2. Step 2: Convert to fraction form
    39,213.92/54,115.12 = 22,218.13/x
  3. Step 3: Cross multiply
    39,213.92x = 54,115.12 × 22,218.13
  4. Step 4: Simplify right side
    39,213.92x = 1,202,336,866.54
  5. Step 5: Solve for x
    x = 1,202,336,866.54/39,213.92
  6. Step 6: Final answer
    x = 30,660.97

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Half scale
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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.