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Finding the Third Proportional to 18,642.38 and 28,235.25

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Solution

The third proportional to 18,642.38 and 28,235.25 is: 42,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.38 : 28,235.25 = 28,235.25 : x
  2. Step 2: Convert to fraction form
    18,642.38/28,235.25 = 28,235.25/x
  3. Step 3: Cross multiply
    18,642.38x = 28,235.25 × 28,235.25
  4. Step 4: Simplify right side
    18,642.38x = 797,229,342.56
  5. Step 5: Solve for x
    x = 797,229,342.56/18,642.38
  6. Step 6: Final answer
    x = 42,764.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.