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Finding the Third Proportional to 11,035 and 21,515

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Solution

The third proportional to 11,035 and 21,515 is: 41,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,035 : 21,515 = 21,515 : x
  2. Step 2: Convert to fraction form
    11,035/21,515 = 21,515/x
  3. Step 3: Cross multiply
    11,035x = 21,515 × 21,515
  4. Step 4: Simplify right side
    11,035x = 462,895,225
  5. Step 5: Solve for x
    x = 462,895,225/11,035
  6. Step 6: Final answer
    x = 41,947.91

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.