Home / 38,538.70-57,811.89-10,459.20

Finding the Fourth Proportional to 38,538.70, 57,811.89 and 10,459.20

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Solution

The fourth proportional to 38,538.70, 57,811.89 and 10,459.20 is: 15,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,538.70 : 57,811.89 = 10,459.20 : x
  2. Step 2: Convert to fraction form
    38,538.70/57,811.89 = 10,459.20/x
  3. Step 3: Cross multiply
    38,538.70x = 57,811.89 × 10,459.20
  4. Step 4: Simplify right side
    38,538.70x = 604,666,375.90
  5. Step 5: Solve for x
    x = 604,666,375.90/38,538.70
  6. Step 6: Final answer
    x = 15,689.85

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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.