Home / 28,818.56-43,217.43-12,179.88

Finding the Fourth Proportional to 28,818.56, 43,217.43 and 12,179.88

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Solution

The fourth proportional to 28,818.56, 43,217.43 and 12,179.88 is: 18,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.56 : 43,217.43 = 12,179.88 : x
  2. Step 2: Convert to fraction form
    28,818.56/43,217.43 = 12,179.88/x
  3. Step 3: Cross multiply
    28,818.56x = 43,217.43 × 12,179.88
  4. Step 4: Simplify right side
    28,818.56x = 526,383,111.31
  5. Step 5: Solve for x
    x = 526,383,111.31/28,818.56
  6. Step 6: Final answer
    x = 18,265.42

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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.