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Finding the Third Proportional to 13,228 and 20,935

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Solution

The third proportional to 13,228 and 20,935 is: 33,132.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228 : 20,935 = 20,935 : x
  2. Step 2: Convert to fraction form
    13,228/20,935 = 20,935/x
  3. Step 3: Cross multiply
    13,228x = 20,935 × 20,935
  4. Step 4: Simplify right side
    13,228x = 438,274,225
  5. Step 5: Solve for x
    x = 438,274,225/13,228
  6. Step 6: Final answer
    x = 33,132.31

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.