Home / 38,761.20-58,165.80-15,385.20

Finding the Fourth Proportional to 38,761.20, 58,165.80 and 15,385.20

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Solution

The fourth proportional to 38,761.20, 58,165.80 and 15,385.20 is: 23,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,761.20 : 58,165.80 = 15,385.20 : x
  2. Step 2: Convert to fraction form
    38,761.20/58,165.80 = 15,385.20/x
  3. Step 3: Cross multiply
    38,761.20x = 58,165.80 × 15,385.20
  4. Step 4: Simplify right side
    38,761.20x = 894,892,466.16
  5. Step 5: Solve for x
    x = 894,892,466.16/38,761.20
  6. Step 6: Final answer
    x = 23,087.33

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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.