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Finding the Third Proportional to 13,844 and 20,910

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Solution

The third proportional to 13,844 and 20,910 is: 31,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844 : 20,910 = 20,910 : x
  2. Step 2: Convert to fraction form
    13,844/20,910 = 20,910/x
  3. Step 3: Cross multiply
    13,844x = 20,910 × 20,910
  4. Step 4: Simplify right side
    13,844x = 437,228,100
  5. Step 5: Solve for x
    x = 437,228,100/13,844
  6. Step 6: Final answer
    x = 31,582.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.