Home / 42,290.74-63,439.20-12,710.86

Finding the Fourth Proportional to 42,290.74, 63,439.20 and 12,710.86

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Solution

The fourth proportional to 42,290.74, 63,439.20 and 12,710.86 is: 19,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,290.74 : 63,439.20 = 12,710.86 : x
  2. Step 2: Convert to fraction form
    42,290.74/63,439.20 = 12,710.86/x
  3. Step 3: Cross multiply
    42,290.74x = 63,439.20 × 12,710.86
  4. Step 4: Simplify right side
    42,290.74x = 806,366,789.71
  5. Step 5: Solve for x
    x = 806,366,789.71/42,290.74
  6. Step 6: Final answer
    x = 19,067.22

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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.