Home / 19,185.85-28,780.19-6,704.43

Finding the Fourth Proportional to 19,185.85, 28,780.19 and 6,704.43

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Solution

The fourth proportional to 19,185.85, 28,780.19 and 6,704.43 is: 10,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.85 : 28,780.19 = 6,704.43 : x
  2. Step 2: Convert to fraction form
    19,185.85/28,780.19 = 6,704.43/x
  3. Step 3: Cross multiply
    19,185.85x = 28,780.19 × 6,704.43
  4. Step 4: Simplify right side
    19,185.85x = 192,954,769.24
  5. Step 5: Solve for x
    x = 192,954,769.24/19,185.85
  6. Step 6: Final answer
    x = 10,057.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.