Home / 28,856.60-43,285.98-8,079.56

Finding the Fourth Proportional to 28,856.60, 43,285.98 and 8,079.56

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Solution

The fourth proportional to 28,856.60, 43,285.98 and 8,079.56 is: 12,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.60 : 43,285.98 = 8,079.56 : x
  2. Step 2: Convert to fraction form
    28,856.60/43,285.98 = 8,079.56/x
  3. Step 3: Cross multiply
    28,856.60x = 43,285.98 × 8,079.56
  4. Step 4: Simplify right side
    28,856.60x = 349,731,672.57
  5. Step 5: Solve for x
    x = 349,731,672.57/28,856.60
  6. Step 6: Final answer
    x = 12,119.64

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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.