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Finding the Third Proportional to 19,910 and 29,408

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Solution

The third proportional to 19,910 and 29,408 is: 43,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910 : 29,408 = 29,408 : x
  2. Step 2: Convert to fraction form
    19,910/29,408 = 29,408/x
  3. Step 3: Cross multiply
    19,910x = 29,408 × 29,408
  4. Step 4: Simplify right side
    19,910x = 864,830,464
  5. Step 5: Solve for x
    x = 864,830,464/19,910
  6. Step 6: Final answer
    x = 43,436.99

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.