Home / 38,105.22-57,142.19-11,441.90

Finding the Fourth Proportional to 38,105.22, 57,142.19 and 11,441.90

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Solution

The fourth proportional to 38,105.22, 57,142.19 and 11,441.90 is: 17,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.22 : 57,142.19 = 11,441.90 : x
  2. Step 2: Convert to fraction form
    38,105.22/57,142.19 = 11,441.90/x
  3. Step 3: Cross multiply
    38,105.22x = 57,142.19 × 11,441.90
  4. Step 4: Simplify right side
    38,105.22x = 653,815,223.76
  5. Step 5: Solve for x
    x = 653,815,223.76/38,105.22
  6. Step 6: Final answer
    x = 17,158.15

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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.