Home / 42,517.59-63,737.04-18,812.57

Finding the Fourth Proportional to 42,517.59, 63,737.04 and 18,812.57

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Solution

The fourth proportional to 42,517.59, 63,737.04 and 18,812.57 is: 28,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,517.59 : 63,737.04 = 18,812.57 : x
  2. Step 2: Convert to fraction form
    42,517.59/63,737.04 = 18,812.57/x
  3. Step 3: Cross multiply
    42,517.59x = 63,737.04 × 18,812.57
  4. Step 4: Simplify right side
    42,517.59x = 1,199,057,432.53
  5. Step 5: Solve for x
    x = 1,199,057,432.53/42,517.59
  6. Step 6: Final answer
    x = 28,201.44

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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.