Home / 19,960.57-29,942.53-5,169.77

Finding the Fourth Proportional to 19,960.57, 29,942.53 and 5,169.77

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Solution

The fourth proportional to 19,960.57, 29,942.53 and 5,169.77 is: 7,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.57 : 29,942.53 = 5,169.77 : x
  2. Step 2: Convert to fraction form
    19,960.57/29,942.53 = 5,169.77/x
  3. Step 3: Cross multiply
    19,960.57x = 29,942.53 × 5,169.77
  4. Step 4: Simplify right side
    19,960.57x = 154,795,942.97
  5. Step 5: Solve for x
    x = 154,795,942.97/19,960.57
  6. Step 6: Final answer
    x = 7,755.09

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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.