Home / 28,377.04-42,583.92-12,793.72

Finding the Fourth Proportional to 28,377.04, 42,583.92 and 12,793.72

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Solution

The fourth proportional to 28,377.04, 42,583.92 and 12,793.72 is: 19,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.04 : 42,583.92 = 12,793.72 : x
  2. Step 2: Convert to fraction form
    28,377.04/42,583.92 = 12,793.72/x
  3. Step 3: Cross multiply
    28,377.04x = 42,583.92 × 12,793.72
  4. Step 4: Simplify right side
    28,377.04x = 544,806,748.98
  5. Step 5: Solve for x
    x = 544,806,748.98/28,377.04
  6. Step 6: Final answer
    x = 19,198.86

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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.