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Finding the Fourth Proportional to 31,680.82, 47,533.95 and 11,964.94

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Solution

The fourth proportional to 31,680.82, 47,533.95 and 11,964.94 is: 17,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.82 : 47,533.95 = 11,964.94 : x
  2. Step 2: Convert to fraction form
    31,680.82/47,533.95 = 11,964.94/x
  3. Step 3: Cross multiply
    31,680.82x = 47,533.95 × 11,964.94
  4. Step 4: Simplify right side
    31,680.82x = 568,740,859.71
  5. Step 5: Solve for x
    x = 568,740,859.71/31,680.82
  6. Step 6: Final answer
    x = 17,952.21

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