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Finding the Third Proportional to 28,940 and 43,718

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Solution

The third proportional to 28,940 and 43,718 is: 66,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940 : 43,718 = 43,718 : x
  2. Step 2: Convert to fraction form
    28,940/43,718 = 43,718/x
  3. Step 3: Cross multiply
    28,940x = 43,718 × 43,718
  4. Step 4: Simplify right side
    28,940x = 1,911,263,524
  5. Step 5: Solve for x
    x = 1,911,263,524/28,940
  6. Step 6: Final answer
    x = 66,042.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.