Home / 42,489.23-63,725.94-19,687.66

Finding the Fourth Proportional to 42,489.23, 63,725.94 and 19,687.66

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Solution

The fourth proportional to 42,489.23, 63,725.94 and 19,687.66 is: 29,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,489.23 : 63,725.94 = 19,687.66 : x
  2. Step 2: Convert to fraction form
    42,489.23/63,725.94 = 19,687.66/x
  3. Step 3: Cross multiply
    42,489.23x = 63,725.94 × 19,687.66
  4. Step 4: Simplify right side
    42,489.23x = 1,254,614,480.59
  5. Step 5: Solve for x
    x = 1,254,614,480.59/42,489.23
  6. Step 6: Final answer
    x = 29,527.83

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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.