Home / 38,478.59-57,737.86-29,115.80

Finding the Fourth Proportional to 38,478.59, 57,737.86 and 29,115.80

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Solution

The fourth proportional to 38,478.59, 57,737.86 and 29,115.80 is: 43,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.59 : 57,737.86 = 29,115.80 : x
  2. Step 2: Convert to fraction form
    38,478.59/57,737.86 = 29,115.80/x
  3. Step 3: Cross multiply
    38,478.59x = 57,737.86 × 29,115.80
  4. Step 4: Simplify right side
    38,478.59x = 1,681,084,327.78
  5. Step 5: Solve for x
    x = 1,681,084,327.78/38,478.59
  6. Step 6: Final answer
    x = 43,688.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.