Home / 38,469.98-57,699.18-12,171.30

Finding the Fourth Proportional to 38,469.98, 57,699.18 and 12,171.30

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Solution

The fourth proportional to 38,469.98, 57,699.18 and 12,171.30 is: 18,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469.98 : 57,699.18 = 12,171.30 : x
  2. Step 2: Convert to fraction form
    38,469.98/57,699.18 = 12,171.30/x
  3. Step 3: Cross multiply
    38,469.98x = 57,699.18 × 12,171.30
  4. Step 4: Simplify right side
    38,469.98x = 702,274,029.53
  5. Step 5: Solve for x
    x = 702,274,029.53/38,469.98
  6. Step 6: Final answer
    x = 18,255.12

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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.