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Finding the Third Proportional to 19,908 and 29,286

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Solution

The third proportional to 19,908 and 29,286 is: 43,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908 : 29,286 = 29,286 : x
  2. Step 2: Convert to fraction form
    19,908/29,286 = 29,286/x
  3. Step 3: Cross multiply
    19,908x = 29,286 × 29,286
  4. Step 4: Simplify right side
    19,908x = 857,669,796
  5. Step 5: Solve for x
    x = 857,669,796/19,908
  6. Step 6: Final answer
    x = 43,081.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.