Home / 18,965.24-28,438.50-5,814.44

Finding the Fourth Proportional to 18,965.24, 28,438.50 and 5,814.44

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Solution

The fourth proportional to 18,965.24, 28,438.50 and 5,814.44 is: 8,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.24 : 28,438.50 = 5,814.44 : x
  2. Step 2: Convert to fraction form
    18,965.24/28,438.50 = 5,814.44/x
  3. Step 3: Cross multiply
    18,965.24x = 28,438.50 × 5,814.44
  4. Step 4: Simplify right side
    18,965.24x = 165,353,951.94
  5. Step 5: Solve for x
    x = 165,353,951.94/18,965.24
  6. Step 6: Final answer
    x = 8,718.79

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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.