Home / 28,818.31-43,217.06-12,179.63

Finding the Fourth Proportional to 28,818.31, 43,217.06 and 12,179.63

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Solution

The fourth proportional to 28,818.31, 43,217.06 and 12,179.63 is: 18,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.31 : 43,217.06 = 12,179.63 : x
  2. Step 2: Convert to fraction form
    28,818.31/43,217.06 = 12,179.63/x
  3. Step 3: Cross multiply
    28,818.31x = 43,217.06 × 12,179.63
  4. Step 4: Simplify right side
    28,818.31x = 526,367,584.40
  5. Step 5: Solve for x
    x = 526,367,584.40/28,818.31
  6. Step 6: Final answer
    x = 18,265.04

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1.5x scale

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.