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Finding the Third Proportional to 10,800 and 22,880

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Solution

The third proportional to 10,800 and 22,880 is: 48,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800 : 22,880 = 22,880 : x
  2. Step 2: Convert to fraction form
    10,800/22,880 = 22,880/x
  3. Step 3: Cross multiply
    10,800x = 22,880 × 22,880
  4. Step 4: Simplify right side
    10,800x = 523,494,400
  5. Step 5: Solve for x
    x = 523,494,400/10,800
  6. Step 6: Final answer
    x = 48,471.70

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.