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Finding the Third Proportional to 14.21 and 30.14

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Solution

The third proportional to 14.21 and 30.14 is: 63.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.21 : 30.14 = 30.14 : x
  2. Step 2: Convert to fraction form
    14.21/30.14 = 30.14/x
  3. Step 3: Cross multiply
    14.21x = 30.14 × 30.14
  4. Step 4: Simplify right side
    14.21x = 908.39
  5. Step 5: Solve for x
    x = 908.39/14.21
  6. Step 6: Final answer
    x = 63.91

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.