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Finding the Third Proportional to 10.28 and 22.11

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Solution

The third proportional to 10.28 and 22.11 is: 47.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.28 : 22.11 = 22.11 : x
  2. Step 2: Convert to fraction form
    10.28/22.11 = 22.11/x
  3. Step 3: Cross multiply
    10.28x = 22.11 × 22.11
  4. Step 4: Simplify right side
    10.28x = 488.80
  5. Step 5: Solve for x
    x = 488.80/10.28
  6. Step 6: Final answer
    x = 47.53

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.