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Finding the Fourth Proportional to 44.28, 61.07 and 27.91

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Solution

The fourth proportional to 44.28, 61.07 and 27.91 is: 38.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.28 : 61.07 = 27.91 : x
  2. Step 2: Convert to fraction form
    44.28/61.07 = 27.91/x
  3. Step 3: Cross multiply
    44.28x = 61.07 × 27.91
  4. Step 4: Simplify right side
    44.28x = 1,704.46
  5. Step 5: Solve for x
    x = 1,704.46/44.28
  6. Step 6: Final answer
    x = 38.49

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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.