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Finding the Third Proportional to 21,805 and 47,094

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Solution

The third proportional to 21,805 and 47,094 is: 101,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805 : 47,094 = 47,094 : x
  2. Step 2: Convert to fraction form
    21,805/47,094 = 47,094/x
  3. Step 3: Cross multiply
    21,805x = 47,094 × 47,094
  4. Step 4: Simplify right side
    21,805x = 2,217,844,836
  5. Step 5: Solve for x
    x = 2,217,844,836/21,805
  6. Step 6: Final answer
    x = 101,712.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.