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Finding the Third Proportional to 8,220 and 17,736

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Solution

The third proportional to 8,220 and 17,736 is: 38,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220 : 17,736 = 17,736 : x
  2. Step 2: Convert to fraction form
    8,220/17,736 = 17,736/x
  3. Step 3: Cross multiply
    8,220x = 17,736 × 17,736
  4. Step 4: Simplify right side
    8,220x = 314,565,696
  5. Step 5: Solve for x
    x = 314,565,696/8,220
  6. Step 6: Final answer
    x = 38,268.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.