Home / 18,211.57-27,319.32-5,731.98

Finding the Fourth Proportional to 18,211.57, 27,319.32 and 5,731.98

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Solution

The fourth proportional to 18,211.57, 27,319.32 and 5,731.98 is: 8,598.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.57 : 27,319.32 = 5,731.98 : x
  2. Step 2: Convert to fraction form
    18,211.57/27,319.32 = 5,731.98/x
  3. Step 3: Cross multiply
    18,211.57x = 27,319.32 × 5,731.98
  4. Step 4: Simplify right side
    18,211.57x = 156,593,795.85
  5. Step 5: Solve for x
    x = 156,593,795.85/18,211.57
  6. Step 6: Final answer
    x = 8,598.59

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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.