Home / 28,856.12-43,280.94-8,081.24

Finding the Fourth Proportional to 28,856.12, 43,280.94 and 8,081.24

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Solution

The fourth proportional to 28,856.12, 43,280.94 and 8,081.24 is: 12,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.12 : 43,280.94 = 8,081.24 : x
  2. Step 2: Convert to fraction form
    28,856.12/43,280.94 = 8,081.24/x
  3. Step 3: Cross multiply
    28,856.12x = 43,280.94 × 8,081.24
  4. Step 4: Simplify right side
    28,856.12x = 349,763,663.57
  5. Step 5: Solve for x
    x = 349,763,663.57/28,856.12
  6. Step 6: Final answer
    x = 12,120.95

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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.