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Finding the Third Proportional to 17.24 and 25.21

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Solution

The third proportional to 17.24 and 25.21 is: 36.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.24 : 25.21 = 25.21 : x
  2. Step 2: Convert to fraction form
    17.24/25.21 = 25.21/x
  3. Step 3: Cross multiply
    17.24x = 25.21 × 25.21
  4. Step 4: Simplify right side
    17.24x = 635.51
  5. Step 5: Solve for x
    x = 635.51/17.24
  6. Step 6: Final answer
    x = 36.87

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.