Home / 38,780.24-58,179.96-12,487.92

Finding the Fourth Proportional to 38,780.24, 58,179.96 and 12,487.92

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Solution

The fourth proportional to 38,780.24, 58,179.96 and 12,487.92 is: 18,734.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.24 : 58,179.96 = 12,487.92 : x
  2. Step 2: Convert to fraction form
    38,780.24/58,179.96 = 12,487.92/x
  3. Step 3: Cross multiply
    38,780.24x = 58,179.96 × 12,487.92
  4. Step 4: Simplify right side
    38,780.24x = 726,546,686.08
  5. Step 5: Solve for x
    x = 726,546,686.08/38,780.24
  6. Step 6: Final answer
    x = 18,734.97

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1.5x scale

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.