Home / 13,827.81-20,738.93-3,964.44

Finding the Fourth Proportional to 13,827.81, 20,738.93 and 3,964.44

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Solution

The fourth proportional to 13,827.81, 20,738.93 and 3,964.44 is: 5,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.81 : 20,738.93 = 3,964.44 : x
  2. Step 2: Convert to fraction form
    13,827.81/20,738.93 = 3,964.44/x
  3. Step 3: Cross multiply
    13,827.81x = 20,738.93 × 3,964.44
  4. Step 4: Simplify right side
    13,827.81x = 82,218,223.83
  5. Step 5: Solve for x
    x = 82,218,223.83/13,827.81
  6. Step 6: Final answer
    x = 5,945.86

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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.