Home / 42,489.66-63,742.24-17,515.85

Finding the Fourth Proportional to 42,489.66, 63,742.24 and 17,515.85

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Solution

The fourth proportional to 42,489.66, 63,742.24 and 17,515.85 is: 26,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,489.66 : 63,742.24 = 17,515.85 : x
  2. Step 2: Convert to fraction form
    42,489.66/63,742.24 = 17,515.85/x
  3. Step 3: Cross multiply
    42,489.66x = 63,742.24 × 17,515.85
  4. Step 4: Simplify right side
    42,489.66x = 1,116,499,217.69
  5. Step 5: Solve for x
    x = 1,116,499,217.69/42,489.66
  6. Step 6: Final answer
    x = 26,276.96

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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.