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Finding the Third Proportional to 20.25 and 48.09

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Solution

The third proportional to 20.25 and 48.09 is: 114.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20.25 : 48.09 = 48.09 : x
  2. Step 2: Convert to fraction form
    20.25/48.09 = 48.09/x
  3. Step 3: Cross multiply
    20.25x = 48.09 × 48.09
  4. Step 4: Simplify right side
    20.25x = 2,313.01
  5. Step 5: Solve for x
    x = 2,313.01/20.25
  6. Step 6: Final answer
    x = 114.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.