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Finding the Third Proportional to 7,131.38 and 15,339.38

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Solution

The third proportional to 7,131.38 and 15,339.38 is: 32,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.38 : 15,339.38 = 15,339.38 : x
  2. Step 2: Convert to fraction form
    7,131.38/15,339.38 = 15,339.38/x
  3. Step 3: Cross multiply
    7,131.38x = 15,339.38 × 15,339.38
  4. Step 4: Simplify right side
    7,131.38x = 235,296,425.39
  5. Step 5: Solve for x
    x = 235,296,425.39/7,131.38
  6. Step 6: Final answer
    x = 32,994.54

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.