Home / 38,489.40-57,723.30-12,202.20

Finding the Fourth Proportional to 38,489.40, 57,723.30 and 12,202.20

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Solution

The fourth proportional to 38,489.40, 57,723.30 and 12,202.20 is: 18,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,489.40 : 57,723.30 = 12,202.20 : x
  2. Step 2: Convert to fraction form
    38,489.40/57,723.30 = 12,202.20/x
  3. Step 3: Cross multiply
    38,489.40x = 57,723.30 × 12,202.20
  4. Step 4: Simplify right side
    38,489.40x = 704,351,251.26
  5. Step 5: Solve for x
    x = 704,351,251.26/38,489.40
  6. Step 6: Final answer
    x = 18,299.88

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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.