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Finding the Fourth Proportional to 30,959.96, 42,724.37 and 16,812.91

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Solution

The fourth proportional to 30,959.96, 42,724.37 and 16,812.91 is: 23,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.96 : 42,724.37 = 16,812.91 : x
  2. Step 2: Convert to fraction form
    30,959.96/42,724.37 = 16,812.91/x
  3. Step 3: Cross multiply
    30,959.96x = 42,724.37 × 16,812.91
  4. Step 4: Simplify right side
    30,959.96x = 718,320,773.99
  5. Step 5: Solve for x
    x = 718,320,773.99/30,959.96
  6. Step 6: Final answer
    x = 23,201.61

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