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Finding the Third Proportional to 15.68 and 22.36

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Solution

The third proportional to 15.68 and 22.36 is: 31.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.68 : 22.36 = 22.36 : x
  2. Step 2: Convert to fraction form
    15.68/22.36 = 22.36/x
  3. Step 3: Cross multiply
    15.68x = 22.36 × 22.36
  4. Step 4: Simplify right side
    15.68x = 499.94
  5. Step 5: Solve for x
    x = 499.94/15.68
  6. Step 6: Final answer
    x = 31.88

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.