Home / 21,725.20-32,517.06-11,839.96

Finding the Fourth Proportional to 21,725.20, 32,517.06 and 11,839.96

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Solution

The fourth proportional to 21,725.20, 32,517.06 and 11,839.96 is: 17,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.20 : 32,517.06 = 11,839.96 : x
  2. Step 2: Convert to fraction form
    21,725.20/32,517.06 = 11,839.96/x
  3. Step 3: Cross multiply
    21,725.20x = 32,517.06 × 11,839.96
  4. Step 4: Simplify right side
    21,725.20x = 385,000,689.72
  5. Step 5: Solve for x
    x = 385,000,689.72/21,725.20
  6. Step 6: Final answer
    x = 17,721.39

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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.