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Finding the Third Proportional to 20,664 and 36,144

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Solution

The third proportional to 20,664 and 36,144 is: 63,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664 : 36,144 = 36,144 : x
  2. Step 2: Convert to fraction form
    20,664/36,144 = 36,144/x
  3. Step 3: Cross multiply
    20,664x = 36,144 × 36,144
  4. Step 4: Simplify right side
    20,664x = 1,306,388,736
  5. Step 5: Solve for x
    x = 1,306,388,736/20,664
  6. Step 6: Final answer
    x = 63,220.52

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.