Home / 42,026.88-63,046.56-14,318.40

Finding the Fourth Proportional to 42,026.88, 63,046.56 and 14,318.40

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Solution

The fourth proportional to 42,026.88, 63,046.56 and 14,318.40 is: 21,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,026.88 : 63,046.56 = 14,318.40 : x
  2. Step 2: Convert to fraction form
    42,026.88/63,046.56 = 14,318.40/x
  3. Step 3: Cross multiply
    42,026.88x = 63,046.56 × 14,318.40
  4. Step 4: Simplify right side
    42,026.88x = 902,725,864.70
  5. Step 5: Solve for x
    x = 902,725,864.70/42,026.88
  6. Step 6: Final answer
    x = 21,479.73

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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.