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Finding the Fourth Proportional to 30,329.62, 45,519.99 and 12,812.02

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Solution

The fourth proportional to 30,329.62, 45,519.99 and 12,812.02 is: 19,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329.62 : 45,519.99 = 12,812.02 : x
  2. Step 2: Convert to fraction form
    30,329.62/45,519.99 = 12,812.02/x
  3. Step 3: Cross multiply
    30,329.62x = 45,519.99 × 12,812.02
  4. Step 4: Simplify right side
    30,329.62x = 583,203,022.28
  5. Step 5: Solve for x
    x = 583,203,022.28/30,329.62
  6. Step 6: Final answer
    x = 19,228.83

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