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Finding the Third Proportional to 14,929 and 21,225

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Solution

The third proportional to 14,929 and 21,225 is: 30,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,929 : 21,225 = 21,225 : x
  2. Step 2: Convert to fraction form
    14,929/21,225 = 21,225/x
  3. Step 3: Cross multiply
    14,929x = 21,225 × 21,225
  4. Step 4: Simplify right side
    14,929x = 450,500,625
  5. Step 5: Solve for x
    x = 450,500,625/14,929
  6. Step 6: Final answer
    x = 30,176.21

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.