Home / 20,862.57-31,257.39-17,375.04

Finding the Fourth Proportional to 20,862.57, 31,257.39 and 17,375.04

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Solution

The fourth proportional to 20,862.57, 31,257.39 and 17,375.04 is: 26,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.57 : 31,257.39 = 17,375.04 : x
  2. Step 2: Convert to fraction form
    20,862.57/31,257.39 = 17,375.04/x
  3. Step 3: Cross multiply
    20,862.57x = 31,257.39 × 17,375.04
  4. Step 4: Simplify right side
    20,862.57x = 543,098,401.55
  5. Step 5: Solve for x
    x = 543,098,401.55/20,862.57
  6. Step 6: Final answer
    x = 26,032.19

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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.