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Finding the Third Proportional to 18.36 and 28.61

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Solution

The third proportional to 18.36 and 28.61 is: 44.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.36 : 28.61 = 28.61 : x
  2. Step 2: Convert to fraction form
    18.36/28.61 = 28.61/x
  3. Step 3: Cross multiply
    18.36x = 28.61 × 28.61
  4. Step 4: Simplify right side
    18.36x = 818.27
  5. Step 5: Solve for x
    x = 818.27/18.36
  6. Step 6: Final answer
    x = 44.56

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.