Home / 19,014.14-28,528.50-7,917.85

Finding the Fourth Proportional to 19,014.14, 28,528.50 and 7,917.85

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Solution

The fourth proportional to 19,014.14, 28,528.50 and 7,917.85 is: 11,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014.14 : 28,528.50 = 7,917.85 : x
  2. Step 2: Convert to fraction form
    19,014.14/28,528.50 = 7,917.85/x
  3. Step 3: Cross multiply
    19,014.14x = 28,528.50 × 7,917.85
  4. Step 4: Simplify right side
    19,014.14x = 225,884,383.73
  5. Step 5: Solve for x
    x = 225,884,383.73/19,014.14
  6. Step 6: Final answer
    x = 11,879.81

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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.