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Finding the Fourth Proportional to 29.81, 44.54 and 27.91

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Solution

The fourth proportional to 29.81, 44.54 and 27.91 is: 41.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.81 : 44.54 = 27.91 : x
  2. Step 2: Convert to fraction form
    29.81/44.54 = 27.91/x
  3. Step 3: Cross multiply
    29.81x = 44.54 × 27.91
  4. Step 4: Simplify right side
    29.81x = 1,243.11
  5. Step 5: Solve for x
    x = 1,243.11/29.81
  6. Step 6: Final answer
    x = 41.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.