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Finding the Fourth Proportional to 30,933.44, 42,685.82 and 18,187.16

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Solution

The fourth proportional to 30,933.44, 42,685.82 and 18,187.16 is: 25,096.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,933.44 : 42,685.82 = 18,187.16 : x
  2. Step 2: Convert to fraction form
    30,933.44/42,685.82 = 18,187.16/x
  3. Step 3: Cross multiply
    30,933.44x = 42,685.82 × 18,187.16
  4. Step 4: Simplify right side
    30,933.44x = 776,333,838.07
  5. Step 5: Solve for x
    x = 776,333,838.07/30,933.44
  6. Step 6: Final answer
    x = 25,096.91

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