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Finding the Third Proportional to 14.13 and 20.19

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Solution

The third proportional to 14.13 and 20.19 is: 28.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.13 : 20.19 = 20.19 : x
  2. Step 2: Convert to fraction form
    14.13/20.19 = 20.19/x
  3. Step 3: Cross multiply
    14.13x = 20.19 × 20.19
  4. Step 4: Simplify right side
    14.13x = 407.54
  5. Step 5: Solve for x
    x = 407.54/14.13
  6. Step 6: Final answer
    x = 28.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.