Home / 13,824.45-20,730.43-3,961.47

Finding the Fourth Proportional to 13,824.45, 20,730.43 and 3,961.47

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Solution

The fourth proportional to 13,824.45, 20,730.43 and 3,961.47 is: 5,940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.45 : 20,730.43 = 3,961.47 : x
  2. Step 2: Convert to fraction form
    13,824.45/20,730.43 = 3,961.47/x
  3. Step 3: Cross multiply
    13,824.45x = 20,730.43 × 3,961.47
  4. Step 4: Simplify right side
    13,824.45x = 82,122,976.53
  5. Step 5: Solve for x
    x = 82,122,976.53/13,824.45
  6. Step 6: Final answer
    x = 5,940.42

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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.