Home / 16,917.12-25,378.11-5,231.25

Finding the Fourth Proportional to 16,917.12, 25,378.11 and 5,231.25

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Solution

The fourth proportional to 16,917.12, 25,378.11 and 5,231.25 is: 7,847.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.12 : 25,378.11 = 5,231.25 : x
  2. Step 2: Convert to fraction form
    16,917.12/25,378.11 = 5,231.25/x
  3. Step 3: Cross multiply
    16,917.12x = 25,378.11 × 5,231.25
  4. Step 4: Simplify right side
    16,917.12x = 132,759,237.94
  5. Step 5: Solve for x
    x = 132,759,237.94/16,917.12
  6. Step 6: Final answer
    x = 7,847.63

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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.