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Finding the Third Proportional to 18,235.13 and 25,489.69

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Solution

The third proportional to 18,235.13 and 25,489.69 is: 35,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.13 : 25,489.69 = 25,489.69 : x
  2. Step 2: Convert to fraction form
    18,235.13/25,489.69 = 25,489.69/x
  3. Step 3: Cross multiply
    18,235.13x = 25,489.69 × 25,489.69
  4. Step 4: Simplify right side
    18,235.13x = 649,724,168.85
  5. Step 5: Solve for x
    x = 649,724,168.85/18,235.13
  6. Step 6: Final answer
    x = 35,630.37

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.