Home / 13,844.31-20,769.21-5,079.30

Finding the Fourth Proportional to 13,844.31, 20,769.21 and 5,079.30

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Solution

The fourth proportional to 13,844.31, 20,769.21 and 5,079.30 is: 7,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.31 : 20,769.21 = 5,079.30 : x
  2. Step 2: Convert to fraction form
    13,844.31/20,769.21 = 5,079.30/x
  3. Step 3: Cross multiply
    13,844.31x = 20,769.21 × 5,079.30
  4. Step 4: Simplify right side
    13,844.31x = 105,493,048.35
  5. Step 5: Solve for x
    x = 105,493,048.35/13,844.31
  6. Step 6: Final answer
    x = 7,619.96

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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.