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Finding the Third Proportional to 14,286 and 20,961

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Solution

The third proportional to 14,286 and 20,961 is: 30,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286 : 20,961 = 20,961 : x
  2. Step 2: Convert to fraction form
    14,286/20,961 = 20,961/x
  3. Step 3: Cross multiply
    14,286x = 20,961 × 20,961
  4. Step 4: Simplify right side
    14,286x = 439,363,521
  5. Step 5: Solve for x
    x = 439,363,521/14,286
  6. Step 6: Final answer
    x = 30,754.83

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.