Home / 28,856.45-43,291.05-8,868.72

Finding the Fourth Proportional to 28,856.45, 43,291.05 and 8,868.72

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Solution

The fourth proportional to 28,856.45, 43,291.05 and 8,868.72 is: 13,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.45 : 43,291.05 = 8,868.72 : x
  2. Step 2: Convert to fraction form
    28,856.45/43,291.05 = 8,868.72/x
  3. Step 3: Cross multiply
    28,856.45x = 43,291.05 × 8,868.72
  4. Step 4: Simplify right side
    28,856.45x = 383,936,200.96
  5. Step 5: Solve for x
    x = 383,936,200.96/28,856.45
  6. Step 6: Final answer
    x = 13,305.04

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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.