Home / 19,940.80-29,905.44-6,792.88

Finding the Fourth Proportional to 19,940.80, 29,905.44 and 6,792.88

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Solution

The fourth proportional to 19,940.80, 29,905.44 and 6,792.88 is: 10,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.80 : 29,905.44 = 6,792.88 : x
  2. Step 2: Convert to fraction form
    19,940.80/29,905.44 = 6,792.88/x
  3. Step 3: Cross multiply
    19,940.80x = 29,905.44 × 6,792.88
  4. Step 4: Simplify right side
    19,940.80x = 203,144,065.27
  5. Step 5: Solve for x
    x = 203,144,065.27/19,940.80
  6. Step 6: Final answer
    x = 10,187.36

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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.