Home / 41,688.11-62,542.10-13,608.20

Finding the Fourth Proportional to 41,688.11, 62,542.10 and 13,608.20

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Solution

The fourth proportional to 41,688.11, 62,542.10 and 13,608.20 is: 20,415.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,688.11 : 62,542.10 = 13,608.20 : x
  2. Step 2: Convert to fraction form
    41,688.11/62,542.10 = 13,608.20/x
  3. Step 3: Cross multiply
    41,688.11x = 62,542.10 × 13,608.20
  4. Step 4: Simplify right side
    41,688.11x = 851,085,126.53
  5. Step 5: Solve for x
    x = 851,085,126.53/41,688.11
  6. Step 6: Final answer
    x = 20,415.54

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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.