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Finding the Fourth Proportional to 31,216.88, 46,825.36 and 12,748.88

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Solution

The fourth proportional to 31,216.88, 46,825.36 and 12,748.88 is: 19,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,216.88 : 46,825.36 = 12,748.88 : x
  2. Step 2: Convert to fraction form
    31,216.88/46,825.36 = 12,748.88/x
  3. Step 3: Cross multiply
    31,216.88x = 46,825.36 × 12,748.88
  4. Step 4: Simplify right side
    31,216.88x = 596,970,629.60
  5. Step 5: Solve for x
    x = 596,970,629.60/31,216.88
  6. Step 6: Final answer
    x = 19,123.33

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