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Finding the Fourth Proportional to 31,810.80, 47,723.70 and 9,624.36

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Solution

The fourth proportional to 31,810.80, 47,723.70 and 9,624.36 is: 14,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.80 : 47,723.70 = 9,624.36 : x
  2. Step 2: Convert to fraction form
    31,810.80/47,723.70 = 9,624.36/x
  3. Step 3: Cross multiply
    31,810.80x = 47,723.70 × 9,624.36
  4. Step 4: Simplify right side
    31,810.80x = 459,310,069.33
  5. Step 5: Solve for x
    x = 459,310,069.33/31,810.80
  6. Step 6: Final answer
    x = 14,438.81

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