Home / 20,877.97-31,238.48-14,650.13

Finding the Fourth Proportional to 20,877.97, 31,238.48 and 14,650.13

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Solution

The fourth proportional to 20,877.97, 31,238.48 and 14,650.13 is: 21,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.97 : 31,238.48 = 14,650.13 : x
  2. Step 2: Convert to fraction form
    20,877.97/31,238.48 = 14,650.13/x
  3. Step 3: Cross multiply
    20,877.97x = 31,238.48 × 14,650.13
  4. Step 4: Simplify right side
    20,877.97x = 457,647,793.00
  5. Step 5: Solve for x
    x = 457,647,793.00/20,877.97
  6. Step 6: Final answer
    x = 21,920.13

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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.