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Finding the Third Proportional to 14,180 and 21,131

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Solution

The third proportional to 14,180 and 21,131 is: 31,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180 : 21,131 = 21,131 : x
  2. Step 2: Convert to fraction form
    14,180/21,131 = 21,131/x
  3. Step 3: Cross multiply
    14,180x = 21,131 × 21,131
  4. Step 4: Simplify right side
    14,180x = 446,519,161
  5. Step 5: Solve for x
    x = 446,519,161/14,180
  6. Step 6: Final answer
    x = 31,489.36

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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.