Home / 27,421.78-41,132.68-9,891.61

Finding the Fourth Proportional to 27,421.78, 41,132.68 and 9,891.61

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Solution

The fourth proportional to 27,421.78, 41,132.68 and 9,891.61 is: 14,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,421.78 : 41,132.68 = 9,891.61 : x
  2. Step 2: Convert to fraction form
    27,421.78/41,132.68 = 9,891.61/x
  3. Step 3: Cross multiply
    27,421.78x = 41,132.68 × 9,891.61
  4. Step 4: Simplify right side
    27,421.78x = 406,868,301.25
  5. Step 5: Solve for x
    x = 406,868,301.25/27,421.78
  6. Step 6: Final answer
    x = 14,837.41

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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.