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Finding the Third Proportional to 8,912 and 19,342

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Solution

The third proportional to 8,912 and 19,342 is: 41,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912 : 19,342 = 19,342 : x
  2. Step 2: Convert to fraction form
    8,912/19,342 = 19,342/x
  3. Step 3: Cross multiply
    8,912x = 19,342 × 19,342
  4. Step 4: Simplify right side
    8,912x = 374,112,964
  5. Step 5: Solve for x
    x = 374,112,964/8,912
  6. Step 6: Final answer
    x = 41,978.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.