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Finding the Third Proportional to 19,986 and 29,871

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Solution

The third proportional to 19,986 and 29,871 is: 44,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986 : 29,871 = 29,871 : x
  2. Step 2: Convert to fraction form
    19,986/29,871 = 29,871/x
  3. Step 3: Cross multiply
    19,986x = 29,871 × 29,871
  4. Step 4: Simplify right side
    19,986x = 892,276,641
  5. Step 5: Solve for x
    x = 892,276,641/19,986
  6. Step 6: Final answer
    x = 44,645.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.