Home / 17,131.78-25,698.20-4,651.75

Finding the Fourth Proportional to 17,131.78, 25,698.20 and 4,651.75

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Solution

The fourth proportional to 17,131.78, 25,698.20 and 4,651.75 is: 6,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,131.78 : 25,698.20 = 4,651.75 : x
  2. Step 2: Convert to fraction form
    17,131.78/25,698.20 = 4,651.75/x
  3. Step 3: Cross multiply
    17,131.78x = 25,698.20 × 4,651.75
  4. Step 4: Simplify right side
    17,131.78x = 119,541,601.85
  5. Step 5: Solve for x
    x = 119,541,601.85/17,131.78
  6. Step 6: Final answer
    x = 6,977.77

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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.