Home / 38,282.22-57,420.90-11,986.38

Finding the Fourth Proportional to 38,282.22, 57,420.90 and 11,986.38

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Solution

The fourth proportional to 38,282.22, 57,420.90 and 11,986.38 is: 17,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,282.22 : 57,420.90 = 11,986.38 : x
  2. Step 2: Convert to fraction form
    38,282.22/57,420.90 = 11,986.38/x
  3. Step 3: Cross multiply
    38,282.22x = 57,420.90 × 11,986.38
  4. Step 4: Simplify right side
    38,282.22x = 688,268,727.34
  5. Step 5: Solve for x
    x = 688,268,727.34/38,282.22
  6. Step 6: Final answer
    x = 17,978.81

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