Home / 28,758.78-43,143.62-11,227.50

Finding the Fourth Proportional to 28,758.78, 43,143.62 and 11,227.50

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Solution

The fourth proportional to 28,758.78, 43,143.62 and 11,227.50 is: 16,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.78 : 43,143.62 = 11,227.50 : x
  2. Step 2: Convert to fraction form
    28,758.78/43,143.62 = 11,227.50/x
  3. Step 3: Cross multiply
    28,758.78x = 43,143.62 × 11,227.50
  4. Step 4: Simplify right side
    28,758.78x = 484,394,937.41
  5. Step 5: Solve for x
    x = 484,394,937.41/28,758.78
  6. Step 6: Final answer
    x = 16,843.38

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1.5x scale

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.