Home / 28,811.26-43,217.70-8,821.18

Finding the Fourth Proportional to 28,811.26, 43,217.70 and 8,821.18

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Solution

The fourth proportional to 28,811.26, 43,217.70 and 8,821.18 is: 13,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.26 : 43,217.70 = 8,821.18 : x
  2. Step 2: Convert to fraction form
    28,811.26/43,217.70 = 8,821.18/x
  3. Step 3: Cross multiply
    28,811.26x = 43,217.70 × 8,821.18
  4. Step 4: Simplify right side
    28,811.26x = 381,231,110.89
  5. Step 5: Solve for x
    x = 381,231,110.89/28,811.26
  6. Step 6: Final answer
    x = 13,232.02

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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.