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Finding the Fourth Proportional to 31,075.92, 42,884.84 and 16,928.46

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Solution

The fourth proportional to 31,075.92, 42,884.84 and 16,928.46 is: 23,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,075.92 : 42,884.84 = 16,928.46 : x
  2. Step 2: Convert to fraction form
    31,075.92/42,884.84 = 16,928.46/x
  3. Step 3: Cross multiply
    31,075.92x = 42,884.84 × 16,928.46
  4. Step 4: Simplify right side
    31,075.92x = 725,974,340.87
  5. Step 5: Solve for x
    x = 725,974,340.87/31,075.92
  6. Step 6: Final answer
    x = 23,361.31

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