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Finding the Fourth Proportional to 27.48, 41.15 and 18.44

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Solution

The fourth proportional to 27.48, 41.15 and 18.44 is: 27.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.48 : 41.15 = 18.44 : x
  2. Step 2: Convert to fraction form
    27.48/41.15 = 18.44/x
  3. Step 3: Cross multiply
    27.48x = 41.15 × 18.44
  4. Step 4: Simplify right side
    27.48x = 758.81
  5. Step 5: Solve for x
    x = 758.81/27.48
  6. Step 6: Final answer
    x = 27.61

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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.