Home / 19,960.50-29,940.63-5,169.38

Finding the Fourth Proportional to 19,960.50, 29,940.63 and 5,169.38

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Solution

The fourth proportional to 19,960.50, 29,940.63 and 5,169.38 is: 7,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.50 : 29,940.63 = 5,169.38 : x
  2. Step 2: Convert to fraction form
    19,960.50/29,940.63 = 5,169.38/x
  3. Step 3: Cross multiply
    19,960.50x = 29,940.63 × 5,169.38
  4. Step 4: Simplify right side
    19,960.50x = 154,774,493.91
  5. Step 5: Solve for x
    x = 154,774,493.91/19,960.50
  6. Step 6: Final answer
    x = 7,754.04

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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.