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Finding the Third Proportional to 13,070 and 19,912

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Solution

The third proportional to 13,070 and 19,912 is: 30,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070 : 19,912 = 19,912 : x
  2. Step 2: Convert to fraction form
    13,070/19,912 = 19,912/x
  3. Step 3: Cross multiply
    13,070x = 19,912 × 19,912
  4. Step 4: Simplify right side
    13,070x = 396,487,744
  5. Step 5: Solve for x
    x = 396,487,744/13,070
  6. Step 6: Final answer
    x = 30,335.71

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.