Home / 27,311.26-40,982.79-11,515.33

Finding the Fourth Proportional to 27,311.26, 40,982.79 and 11,515.33

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Solution

The fourth proportional to 27,311.26, 40,982.79 and 11,515.33 is: 17,279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.26 : 40,982.79 = 11,515.33 : x
  2. Step 2: Convert to fraction form
    27,311.26/40,982.79 = 11,515.33/x
  3. Step 3: Cross multiply
    27,311.26x = 40,982.79 × 11,515.33
  4. Step 4: Simplify right side
    27,311.26x = 471,930,351.17
  5. Step 5: Solve for x
    x = 471,930,351.17/27,311.26
  6. Step 6: Final answer
    x = 17,279.70

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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.