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Finding the Fourth Proportional to 24.98, 34.49 and 16.81

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Solution

The fourth proportional to 24.98, 34.49 and 16.81 is: 23.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.98 : 34.49 = 16.81 : x
  2. Step 2: Convert to fraction form
    24.98/34.49 = 16.81/x
  3. Step 3: Cross multiply
    24.98x = 34.49 × 16.81
  4. Step 4: Simplify right side
    24.98x = 579.73
  5. Step 5: Solve for x
    x = 579.73/24.98
  6. Step 6: Final answer
    x = 23.21

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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.