Home / 38,475.90-57,713.22-12,180.60

Finding the Fourth Proportional to 38,475.90, 57,713.22 and 12,180.60

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Solution

The fourth proportional to 38,475.90, 57,713.22 and 12,180.60 is: 18,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,475.90 : 57,713.22 = 12,180.60 : x
  2. Step 2: Convert to fraction form
    38,475.90/57,713.22 = 12,180.60/x
  3. Step 3: Cross multiply
    38,475.90x = 57,713.22 × 12,180.60
  4. Step 4: Simplify right side
    38,475.90x = 702,981,647.53
  5. Step 5: Solve for x
    x = 702,981,647.53/38,475.90
  6. Step 6: Final answer
    x = 18,270.70

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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.