Home / 21,244.43-31,874.50-8,765.54

Finding the Fourth Proportional to 21,244.43, 31,874.50 and 8,765.54

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Solution

The fourth proportional to 21,244.43, 31,874.50 and 8,765.54 is: 13,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.43 : 31,874.50 = 8,765.54 : x
  2. Step 2: Convert to fraction form
    21,244.43/31,874.50 = 8,765.54/x
  3. Step 3: Cross multiply
    21,244.43x = 31,874.50 × 8,765.54
  4. Step 4: Simplify right side
    21,244.43x = 279,397,253.16
  5. Step 5: Solve for x
    x = 279,397,253.16/21,244.43
  6. Step 6: Final answer
    x = 13,151.56

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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.