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Finding the Third Proportional to 14,874 and 21,213

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Solution

The third proportional to 14,874 and 21,213 is: 30,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874 : 21,213 = 21,213 : x
  2. Step 2: Convert to fraction form
    14,874/21,213 = 21,213/x
  3. Step 3: Cross multiply
    14,874x = 21,213 × 21,213
  4. Step 4: Simplify right side
    14,874x = 449,991,369
  5. Step 5: Solve for x
    x = 449,991,369/14,874
  6. Step 6: Final answer
    x = 30,253.55

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.