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Finding the Fourth Proportional to 31,183.44, 46,808.46 and 13,422.89

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Solution

The fourth proportional to 31,183.44, 46,808.46 and 13,422.89 is: 20,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,183.44 : 46,808.46 = 13,422.89 : x
  2. Step 2: Convert to fraction form
    31,183.44/46,808.46 = 13,422.89/x
  3. Step 3: Cross multiply
    31,183.44x = 46,808.46 × 13,422.89
  4. Step 4: Simplify right side
    31,183.44x = 628,304,742.53
  5. Step 5: Solve for x
    x = 628,304,742.53/31,183.44
  6. Step 6: Final answer
    x = 20,148.67

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