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Finding the Third Proportional to 20.56 and 30.06

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Solution

The third proportional to 20.56 and 30.06 is: 43.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20.56 : 30.06 = 30.06 : x
  2. Step 2: Convert to fraction form
    20.56/30.06 = 30.06/x
  3. Step 3: Cross multiply
    20.56x = 30.06 × 30.06
  4. Step 4: Simplify right side
    20.56x = 903.75
  5. Step 5: Solve for x
    x = 903.75/20.56
  6. Step 6: Final answer
    x = 43.95

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.