Home / 38,487.80-57,733.30-12,191.96

Finding the Fourth Proportional to 38,487.80, 57,733.30 and 12,191.96

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Solution

The fourth proportional to 38,487.80, 57,733.30 and 12,191.96 is: 18,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.80 : 57,733.30 = 12,191.96 : x
  2. Step 2: Convert to fraction form
    38,487.80/57,733.30 = 12,191.96/x
  3. Step 3: Cross multiply
    38,487.80x = 57,733.30 × 12,191.96
  4. Step 4: Simplify right side
    38,487.80x = 703,882,084.27
  5. Step 5: Solve for x
    x = 703,882,084.27/38,487.80
  6. Step 6: Final answer
    x = 18,288.45

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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.