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Finding the Third Proportional to 15,838 and 33,891

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Solution

The third proportional to 15,838 and 33,891 is: 72,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,838 : 33,891 = 33,891 : x
  2. Step 2: Convert to fraction form
    15,838/33,891 = 33,891/x
  3. Step 3: Cross multiply
    15,838x = 33,891 × 33,891
  4. Step 4: Simplify right side
    15,838x = 1,148,599,881
  5. Step 5: Solve for x
    x = 1,148,599,881/15,838
  6. Step 6: Final answer
    x = 72,521.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.