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Finding the Third Proportional to 11,057.25 and 17,121.75

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Solution

The third proportional to 11,057.25 and 17,121.75 is: 26,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,057.25 : 17,121.75 = 17,121.75 : x
  2. Step 2: Convert to fraction form
    11,057.25/17,121.75 = 17,121.75/x
  3. Step 3: Cross multiply
    11,057.25x = 17,121.75 × 17,121.75
  4. Step 4: Simplify right side
    11,057.25x = 293,154,323.06
  5. Step 5: Solve for x
    x = 293,154,323.06/11,057.25
  6. Step 6: Final answer
    x = 26,512.41

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.