Home / 31,739.61-43,799.13-18,315.20

Finding the Fourth Proportional to 31,739.61, 43,799.13 and 18,315.20

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Solution

The fourth proportional to 31,739.61, 43,799.13 and 18,315.20 is: 25,274.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.61 : 43,799.13 = 18,315.20 : x
  2. Step 2: Convert to fraction form
    31,739.61/43,799.13 = 18,315.20/x
  3. Step 3: Cross multiply
    31,739.61x = 43,799.13 × 18,315.20
  4. Step 4: Simplify right side
    31,739.61x = 802,189,825.78
  5. Step 5: Solve for x
    x = 802,189,825.78/31,739.61
  6. Step 6: Final answer
    x = 25,274.09

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