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Finding the Third Proportional to 18,479.25 and 28,442.75

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Solution

The third proportional to 18,479.25 and 28,442.75 is: 43,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.25 : 28,442.75 = 28,442.75 : x
  2. Step 2: Convert to fraction form
    18,479.25/28,442.75 = 28,442.75/x
  3. Step 3: Cross multiply
    18,479.25x = 28,442.75 × 28,442.75
  4. Step 4: Simplify right side
    18,479.25x = 808,990,027.56
  5. Step 5: Solve for x
    x = 808,990,027.56/18,479.25
  6. Step 6: Final answer
    x = 43,778.29

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.