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Finding the Third Proportional to 16.56 and 29.21

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Solution

The third proportional to 16.56 and 29.21 is: 51.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.56 : 29.21 = 29.21 : x
  2. Step 2: Convert to fraction form
    16.56/29.21 = 29.21/x
  3. Step 3: Cross multiply
    16.56x = 29.21 × 29.21
  4. Step 4: Simplify right side
    16.56x = 853.16
  5. Step 5: Solve for x
    x = 853.16/16.56
  6. Step 6: Final answer
    x = 51.52

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.