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Finding the Third Proportional to 20,310 and 27,168.75

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Solution

The third proportional to 20,310 and 27,168.75 is: 36,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310 : 27,168.75 = 27,168.75 : x
  2. Step 2: Convert to fraction form
    20,310/27,168.75 = 27,168.75/x
  3. Step 3: Cross multiply
    20,310x = 27,168.75 × 27,168.75
  4. Step 4: Simplify right side
    20,310x = 738,140,976.56
  5. Step 5: Solve for x
    x = 738,140,976.56/20,310
  6. Step 6: Final answer
    x = 36,343.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.