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Finding the Third Proportional to 18,925 and 29,285

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Solution

The third proportional to 18,925 and 29,285 is: 45,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925 : 29,285 = 29,285 : x
  2. Step 2: Convert to fraction form
    18,925/29,285 = 29,285/x
  3. Step 3: Cross multiply
    18,925x = 29,285 × 29,285
  4. Step 4: Simplify right side
    18,925x = 857,611,225
  5. Step 5: Solve for x
    x = 857,611,225/18,925
  6. Step 6: Final answer
    x = 45,316.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.