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Finding the Fourth Proportional to 13,801.74, 20,705.85 and 3,941.16

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Solution

The fourth proportional to 13,801.74, 20,705.85 and 3,941.16 is: 5,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.74 : 20,705.85 = 3,941.16 : x
  2. Step 2: Convert to fraction form
    13,801.74/20,705.85 = 3,941.16/x
  3. Step 3: Cross multiply
    13,801.74x = 20,705.85 × 3,941.16
  4. Step 4: Simplify right side
    13,801.74x = 81,605,067.79
  5. Step 5: Solve for x
    x = 81,605,067.79/13,801.74
  6. Step 6: Final answer
    x = 5,912.67

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