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Finding the Third Proportional to 20.50 and 29.96

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Solution

The third proportional to 20.50 and 29.96 is: 43.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20.50 : 29.96 = 29.96 : x
  2. Step 2: Convert to fraction form
    20.50/29.96 = 29.96/x
  3. Step 3: Cross multiply
    20.50x = 29.96 × 29.96
  4. Step 4: Simplify right side
    20.50x = 897.53
  5. Step 5: Solve for x
    x = 897.53/20.50
  6. Step 6: Final answer
    x = 43.79

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.