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Finding the Fourth Proportional to 35.97, 49.59 and 27.76

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Solution

The fourth proportional to 35.97, 49.59 and 27.76 is: 38.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.97 : 49.59 = 27.76 : x
  2. Step 2: Convert to fraction form
    35.97/49.59 = 27.76/x
  3. Step 3: Cross multiply
    35.97x = 49.59 × 27.76
  4. Step 4: Simplify right side
    35.97x = 1,376.62
  5. Step 5: Solve for x
    x = 1,376.62/35.97
  6. Step 6: Final answer
    x = 38.28

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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.