Home / 42,476.56-63,690.24-14,387.20

Finding the Fourth Proportional to 42,476.56, 63,690.24 and 14,387.20

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Solution

The fourth proportional to 42,476.56, 63,690.24 and 14,387.20 is: 21,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,476.56 : 63,690.24 = 14,387.20 : x
  2. Step 2: Convert to fraction form
    42,476.56/63,690.24 = 14,387.20/x
  3. Step 3: Cross multiply
    42,476.56x = 63,690.24 × 14,387.20
  4. Step 4: Simplify right side
    42,476.56x = 916,324,220.93
  5. Step 5: Solve for x
    x = 916,324,220.93/42,476.56
  6. Step 6: Final answer
    x = 21,572.47

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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.