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Finding the Third Proportional to 19,910 and 27,907

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Solution

The third proportional to 19,910 and 27,907 is: 39,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910 : 27,907 = 27,907 : x
  2. Step 2: Convert to fraction form
    19,910/27,907 = 27,907/x
  3. Step 3: Cross multiply
    19,910x = 27,907 × 27,907
  4. Step 4: Simplify right side
    19,910x = 778,800,649
  5. Step 5: Solve for x
    x = 778,800,649/19,910
  6. Step 6: Final answer
    x = 39,116.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.