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Finding the Third Proportional to 20,881.88 and 30,170.81

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Solution

The third proportional to 20,881.88 and 30,170.81 is: 43,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881.88 : 30,170.81 = 30,170.81 : x
  2. Step 2: Convert to fraction form
    20,881.88/30,170.81 = 30,170.81/x
  3. Step 3: Cross multiply
    20,881.88x = 30,170.81 × 30,170.81
  4. Step 4: Simplify right side
    20,881.88x = 910,277,926.91
  5. Step 5: Solve for x
    x = 910,277,926.91/20,881.88
  6. Step 6: Final answer
    x = 43,591.77

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.