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Finding the Third Proportional to 18.51 and 32.75

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Solution

The third proportional to 18.51 and 32.75 is: 57.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.51 : 32.75 = 32.75 : x
  2. Step 2: Convert to fraction form
    18.51/32.75 = 32.75/x
  3. Step 3: Cross multiply
    18.51x = 32.75 × 32.75
  4. Step 4: Simplify right side
    18.51x = 1,072.43
  5. Step 5: Solve for x
    x = 1,072.43/18.51
  6. Step 6: Final answer
    x = 57.94

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.