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Finding the Fourth Proportional to 27,791.92, 38,354.88 and 18,344.08

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Solution

The fourth proportional to 27,791.92, 38,354.88 and 18,344.08 is: 25,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,791.92 : 38,354.88 = 18,344.08 : x
  2. Step 2: Convert to fraction form
    27,791.92/38,354.88 = 18,344.08/x
  3. Step 3: Cross multiply
    27,791.92x = 38,354.88 × 18,344.08
  4. Step 4: Simplify right side
    27,791.92x = 703,584,987.11
  5. Step 5: Solve for x
    x = 703,584,987.11/27,791.92
  6. Step 6: Final answer
    x = 25,316.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.