Home / 42,446.25-63,572.42-20,275.31

Finding the Fourth Proportional to 42,446.25, 63,572.42 and 20,275.31

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Solution

The fourth proportional to 42,446.25, 63,572.42 and 20,275.31 is: 30,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,446.25 : 63,572.42 = 20,275.31 : x
  2. Step 2: Convert to fraction form
    42,446.25/63,572.42 = 20,275.31/x
  3. Step 3: Cross multiply
    42,446.25x = 63,572.42 × 20,275.31
  4. Step 4: Simplify right side
    42,446.25x = 1,288,950,732.57
  5. Step 5: Solve for x
    x = 1,288,950,732.57/42,446.25
  6. Step 6: Final answer
    x = 30,366.66

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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.