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Finding the Third Proportional to 20,122 and 28,623

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Solution

The third proportional to 20,122 and 28,623 is: 40,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122 : 28,623 = 28,623 : x
  2. Step 2: Convert to fraction form
    20,122/28,623 = 28,623/x
  3. Step 3: Cross multiply
    20,122x = 28,623 × 28,623
  4. Step 4: Simplify right side
    20,122x = 819,276,129
  5. Step 5: Solve for x
    x = 819,276,129/20,122
  6. Step 6: Final answer
    x = 40,715.44

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1.5x scale

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.