Home / 18,981.10-28,474.37-5,834.57

Finding the Fourth Proportional to 18,981.10, 28,474.37 and 5,834.57

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Solution

The fourth proportional to 18,981.10, 28,474.37 and 5,834.57 is: 8,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.10 : 28,474.37 = 5,834.57 : x
  2. Step 2: Convert to fraction form
    18,981.10/28,474.37 = 5,834.57/x
  3. Step 3: Cross multiply
    18,981.10x = 28,474.37 × 5,834.57
  4. Step 4: Simplify right side
    18,981.10x = 166,135,675.80
  5. Step 5: Solve for x
    x = 166,135,675.80/18,981.10
  6. Step 6: Final answer
    x = 8,752.69

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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.