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Finding the Third Proportional to 18,840 and 34,800

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Solution

The third proportional to 18,840 and 34,800 is: 64,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840 : 34,800 = 34,800 : x
  2. Step 2: Convert to fraction form
    18,840/34,800 = 34,800/x
  3. Step 3: Cross multiply
    18,840x = 34,800 × 34,800
  4. Step 4: Simplify right side
    18,840x = 1,211,040,000
  5. Step 5: Solve for x
    x = 1,211,040,000/18,840
  6. Step 6: Final answer
    x = 64,280.25

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.