Home / 17,217-25,801.26-13,691.37

Finding the Fourth Proportional to 17,217, 25,801.26 and 13,691.37

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Solution

The fourth proportional to 17,217, 25,801.26 and 13,691.37 is: 20,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,217 : 25,801.26 = 13,691.37 : x
  2. Step 2: Convert to fraction form
    17,217/25,801.26 = 13,691.37/x
  3. Step 3: Cross multiply
    17,217x = 25,801.26 × 13,691.37
  4. Step 4: Simplify right side
    17,217x = 353,254,597.13
  5. Step 5: Solve for x
    x = 353,254,597.13/17,217
  6. Step 6: Final answer
    x = 20,517.78

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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.