Home / 38,759.20-58,158-15,385.12

Finding the Fourth Proportional to 38,759.20, 58,158 and 15,385.12

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Solution

The fourth proportional to 38,759.20, 58,158 and 15,385.12 is: 23,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,759.20 : 58,158 = 15,385.12 : x
  2. Step 2: Convert to fraction form
    38,759.20/58,158 = 15,385.12/x
  3. Step 3: Cross multiply
    38,759.20x = 58,158 × 15,385.12
  4. Step 4: Simplify right side
    38,759.20x = 894,767,808.96
  5. Step 5: Solve for x
    x = 894,767,808.96/38,759.20
  6. Step 6: Final answer
    x = 23,085.30

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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.