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Finding the Third Proportional to 14,278 and 30,992

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Solution

The third proportional to 14,278 and 30,992 is: 67,271.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278 : 30,992 = 30,992 : x
  2. Step 2: Convert to fraction form
    14,278/30,992 = 30,992/x
  3. Step 3: Cross multiply
    14,278x = 30,992 × 30,992
  4. Step 4: Simplify right side
    14,278x = 960,504,064
  5. Step 5: Solve for x
    x = 960,504,064/14,278
  6. Step 6: Final answer
    x = 67,271.61

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.