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Finding the Fourth Proportional to 27.52, 38.15 and 27.08

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Solution

The fourth proportional to 27.52, 38.15 and 27.08 is: 37.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.52 : 38.15 = 27.08 : x
  2. Step 2: Convert to fraction form
    27.52/38.15 = 27.08/x
  3. Step 3: Cross multiply
    27.52x = 38.15 × 27.08
  4. Step 4: Simplify right side
    27.52x = 1,033.16
  5. Step 5: Solve for x
    x = 1,033.16/27.52
  6. Step 6: Final answer
    x = 37.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.