Home / 28,724.82-43,078.86-11,190.48

Finding the Fourth Proportional to 28,724.82, 43,078.86 and 11,190.48

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Solution

The fourth proportional to 28,724.82, 43,078.86 and 11,190.48 is: 16,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.82 : 43,078.86 = 11,190.48 : x
  2. Step 2: Convert to fraction form
    28,724.82/43,078.86 = 11,190.48/x
  3. Step 3: Cross multiply
    28,724.82x = 43,078.86 × 11,190.48
  4. Step 4: Simplify right side
    28,724.82x = 482,073,121.25
  5. Step 5: Solve for x
    x = 482,073,121.25/28,724.82
  6. Step 6: Final answer
    x = 16,782.46

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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.