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Finding the Third Proportional to 13.55 and 28.18

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Solution

The third proportional to 13.55 and 28.18 is: 58.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.55 : 28.18 = 28.18 : x
  2. Step 2: Convert to fraction form
    13.55/28.18 = 28.18/x
  3. Step 3: Cross multiply
    13.55x = 28.18 × 28.18
  4. Step 4: Simplify right side
    13.55x = 794.08
  5. Step 5: Solve for x
    x = 794.08/13.55
  6. Step 6: Final answer
    x = 58.58

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.