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Finding the Third Proportional to 16.31 and 25.59

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Solution

The third proportional to 16.31 and 25.59 is: 40.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.31 : 25.59 = 25.59 : x
  2. Step 2: Convert to fraction form
    16.31/25.59 = 25.59/x
  3. Step 3: Cross multiply
    16.31x = 25.59 × 25.59
  4. Step 4: Simplify right side
    16.31x = 655.04
  5. Step 5: Solve for x
    x = 655.04/16.31
  6. Step 6: Final answer
    x = 40.16

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.