Home / 17,311.20-25,929.12-11,381.38

Finding the Fourth Proportional to 17,311.20, 25,929.12 and 11,381.38

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Solution

The fourth proportional to 17,311.20, 25,929.12 and 11,381.38 is: 17,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,311.20 : 25,929.12 = 11,381.38 : x
  2. Step 2: Convert to fraction form
    17,311.20/25,929.12 = 11,381.38/x
  3. Step 3: Cross multiply
    17,311.20x = 25,929.12 × 11,381.38
  4. Step 4: Simplify right side
    17,311.20x = 295,109,167.79
  5. Step 5: Solve for x
    x = 295,109,167.79/17,311.20
  6. Step 6: Final answer
    x = 17,047.30

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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.