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Finding the Third Proportional to 20,008 and 30,168

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Solution

The third proportional to 20,008 and 30,168 is: 45,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008 : 30,168 = 30,168 : x
  2. Step 2: Convert to fraction form
    20,008/30,168 = 30,168/x
  3. Step 3: Cross multiply
    20,008x = 30,168 × 30,168
  4. Step 4: Simplify right side
    20,008x = 910,108,224
  5. Step 5: Solve for x
    x = 910,108,224/20,008
  6. Step 6: Final answer
    x = 45,487.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.