Home / 28,727.10-43,103.25-11,190.87

Finding the Fourth Proportional to 28,727.10, 43,103.25 and 11,190.87

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Solution

The fourth proportional to 28,727.10, 43,103.25 and 11,190.87 is: 16,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.10 : 43,103.25 = 11,190.87 : x
  2. Step 2: Convert to fraction form
    28,727.10/43,103.25 = 11,190.87/x
  3. Step 3: Cross multiply
    28,727.10x = 43,103.25 × 11,190.87
  4. Step 4: Simplify right side
    28,727.10x = 482,362,867.33
  5. Step 5: Solve for x
    x = 482,362,867.33/28,727.10
  6. Step 6: Final answer
    x = 16,791.21

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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.