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Finding the Third Proportional to 20,156 and 47,071

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Solution

The third proportional to 20,156 and 47,071 is: 109,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156 : 47,071 = 47,071 : x
  2. Step 2: Convert to fraction form
    20,156/47,071 = 47,071/x
  3. Step 3: Cross multiply
    20,156x = 47,071 × 47,071
  4. Step 4: Simplify right side
    20,156x = 2,215,679,041
  5. Step 5: Solve for x
    x = 2,215,679,041/20,156
  6. Step 6: Final answer
    x = 109,926.53

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.