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Finding the Third Proportional to 13.59 and 29.72

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Solution

The third proportional to 13.59 and 29.72 is: 64.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.59 : 29.72 = 29.72 : x
  2. Step 2: Convert to fraction form
    13.59/29.72 = 29.72/x
  3. Step 3: Cross multiply
    13.59x = 29.72 × 29.72
  4. Step 4: Simplify right side
    13.59x = 883.20
  5. Step 5: Solve for x
    x = 883.20/13.59
  6. Step 6: Final answer
    x = 64.97

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.