Home / 38,319.96-57,456.20-16,121.90

Finding the Fourth Proportional to 38,319.96, 57,456.20 and 16,121.90

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Solution

The fourth proportional to 38,319.96, 57,456.20 and 16,121.90 is: 24,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,319.96 : 57,456.20 = 16,121.90 : x
  2. Step 2: Convert to fraction form
    38,319.96/57,456.20 = 16,121.90/x
  3. Step 3: Cross multiply
    38,319.96x = 57,456.20 × 16,121.90
  4. Step 4: Simplify right side
    38,319.96x = 926,303,110.78
  5. Step 5: Solve for x
    x = 926,303,110.78/38,319.96
  6. Step 6: Final answer
    x = 24,172.86

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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.