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Finding the Third Proportional to 20,135 and 28,492

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Solution

The third proportional to 20,135 and 28,492 is: 40,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135 : 28,492 = 28,492 : x
  2. Step 2: Convert to fraction form
    20,135/28,492 = 28,492/x
  3. Step 3: Cross multiply
    20,135x = 28,492 × 28,492
  4. Step 4: Simplify right side
    20,135x = 811,794,064
  5. Step 5: Solve for x
    x = 811,794,064/20,135
  6. Step 6: Final answer
    x = 40,317.56

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.