Home / 21,731.26-32,555.51-12,377.73

Finding the Fourth Proportional to 21,731.26, 32,555.51 and 12,377.73

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Solution

The fourth proportional to 21,731.26, 32,555.51 and 12,377.73 is: 18,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.26 : 32,555.51 = 12,377.73 : x
  2. Step 2: Convert to fraction form
    21,731.26/32,555.51 = 12,377.73/x
  3. Step 3: Cross multiply
    21,731.26x = 32,555.51 × 12,377.73
  4. Step 4: Simplify right side
    21,731.26x = 402,963,250.90
  5. Step 5: Solve for x
    x = 402,963,250.90/21,731.26
  6. Step 6: Final answer
    x = 18,543.02

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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.