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Finding the Third Proportional to 8,815 and 19,238

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Solution

The third proportional to 8,815 and 19,238 is: 41,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815 : 19,238 = 19,238 : x
  2. Step 2: Convert to fraction form
    8,815/19,238 = 19,238/x
  3. Step 3: Cross multiply
    8,815x = 19,238 × 19,238
  4. Step 4: Simplify right side
    8,815x = 370,100,644
  5. Step 5: Solve for x
    x = 370,100,644/8,815
  6. Step 6: Final answer
    x = 41,985.33

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.