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Finding the Third Proportional to 18.51 and 23.73

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Solution

The third proportional to 18.51 and 23.73 is: 30.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.51 : 23.73 = 23.73 : x
  2. Step 2: Convert to fraction form
    18.51/23.73 = 23.73/x
  3. Step 3: Cross multiply
    18.51x = 23.73 × 23.73
  4. Step 4: Simplify right side
    18.51x = 563.14
  5. Step 5: Solve for x
    x = 563.14/18.51
  6. Step 6: Final answer
    x = 30.42

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.