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Finding the Third Proportional to 20.21 and 43.94

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Solution

The third proportional to 20.21 and 43.94 is: 95.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20.21 : 43.94 = 43.94 : x
  2. Step 2: Convert to fraction form
    20.21/43.94 = 43.94/x
  3. Step 3: Cross multiply
    20.21x = 43.94 × 43.94
  4. Step 4: Simplify right side
    20.21x = 1,930.54
  5. Step 5: Solve for x
    x = 1,930.54/20.21
  6. Step 6: Final answer
    x = 95.52

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.