Home / 21,248.68-31,872.76-9,553.64

Finding the Fourth Proportional to 21,248.68, 31,872.76 and 9,553.64

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Solution

The fourth proportional to 21,248.68, 31,872.76 and 9,553.64 is: 14,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.68 : 31,872.76 = 9,553.64 : x
  2. Step 2: Convert to fraction form
    21,248.68/31,872.76 = 9,553.64/x
  3. Step 3: Cross multiply
    21,248.68x = 31,872.76 × 9,553.64
  4. Step 4: Simplify right side
    21,248.68x = 304,500,874.85
  5. Step 5: Solve for x
    x = 304,500,874.85/21,248.68
  6. Step 6: Final answer
    x = 14,330.34

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1.5x scale

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.