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Finding the Third Proportional to 10,228.78 and 21,583.97

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Solution

The third proportional to 10,228.78 and 21,583.97 is: 45,544.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,228.78 : 21,583.97 = 21,583.97 : x
  2. Step 2: Convert to fraction form
    10,228.78/21,583.97 = 21,583.97/x
  3. Step 3: Cross multiply
    10,228.78x = 21,583.97 × 21,583.97
  4. Step 4: Simplify right side
    10,228.78x = 465,867,707.00
  5. Step 5: Solve for x
    x = 465,867,707.00/10,228.78
  6. Step 6: Final answer
    x = 45,544.79

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.