Home / 42,152.90-63,233.60-13,688.66

Finding the Fourth Proportional to 42,152.90, 63,233.60 and 13,688.66

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Solution

The fourth proportional to 42,152.90, 63,233.60 and 13,688.66 is: 20,534.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,152.90 : 63,233.60 = 13,688.66 : x
  2. Step 2: Convert to fraction form
    42,152.90/63,233.60 = 13,688.66/x
  3. Step 3: Cross multiply
    42,152.90x = 63,233.60 × 13,688.66
  4. Step 4: Simplify right side
    42,152.90x = 865,583,250.98
  5. Step 5: Solve for x
    x = 865,583,250.98/42,152.90
  6. Step 6: Final answer
    x = 20,534.37

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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.