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Finding the Third Proportional to 8,984 and 20,977

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Solution

The third proportional to 8,984 and 20,977 is: 48,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984 : 20,977 = 20,977 : x
  2. Step 2: Convert to fraction form
    8,984/20,977 = 20,977/x
  3. Step 3: Cross multiply
    8,984x = 20,977 × 20,977
  4. Step 4: Simplify right side
    8,984x = 440,034,529
  5. Step 5: Solve for x
    x = 440,034,529/8,984
  6. Step 6: Final answer
    x = 48,979.80

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.