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Finding the Third Proportional to 14.55 and 22.15

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Solution

The third proportional to 14.55 and 22.15 is: 33.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.55 : 22.15 = 22.15 : x
  2. Step 2: Convert to fraction form
    14.55/22.15 = 22.15/x
  3. Step 3: Cross multiply
    14.55x = 22.15 × 22.15
  4. Step 4: Simplify right side
    14.55x = 490.55
  5. Step 5: Solve for x
    x = 490.55/14.55
  6. Step 6: Final answer
    x = 33.70

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.