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Finding the Third Proportional to 20,049.40 and 28,029.80

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Solution

The third proportional to 20,049.40 and 28,029.80 is: 39,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.40 : 28,029.80 = 28,029.80 : x
  2. Step 2: Convert to fraction form
    20,049.40/28,029.80 = 28,029.80/x
  3. Step 3: Cross multiply
    20,049.40x = 28,029.80 × 28,029.80
  4. Step 4: Simplify right side
    20,049.40x = 785,669,512.85
  5. Step 5: Solve for x
    x = 785,669,512.85/20,049.40
  6. Step 6: Final answer
    x = 39,186.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.