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Finding the Third Proportional to 15,081.19 and 20,682.84

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Solution

The third proportional to 15,081.19 and 20,682.84 is: 28,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.19 : 20,682.84 = 20,682.84 : x
  2. Step 2: Convert to fraction form
    15,081.19/20,682.84 = 20,682.84/x
  3. Step 3: Cross multiply
    15,081.19x = 20,682.84 × 20,682.84
  4. Step 4: Simplify right side
    15,081.19x = 427,780,025.59
  5. Step 5: Solve for x
    x = 427,780,025.59/15,081.19
  6. Step 6: Final answer
    x = 28,365.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.