Home / 27,128.97-40,699.68-10,489.14

Finding the Fourth Proportional to 27,128.97, 40,699.68 and 10,489.14

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Solution

The fourth proportional to 27,128.97, 40,699.68 and 10,489.14 is: 15,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.97 : 40,699.68 = 10,489.14 : x
  2. Step 2: Convert to fraction form
    27,128.97/40,699.68 = 10,489.14/x
  3. Step 3: Cross multiply
    27,128.97x = 40,699.68 × 10,489.14
  4. Step 4: Simplify right side
    27,128.97x = 426,904,641.48
  5. Step 5: Solve for x
    x = 426,904,641.48/27,128.97
  6. Step 6: Final answer
    x = 15,736.12

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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.