Home / 21,973.83-30,318.63-13,019.78

Finding the Fourth Proportional to 21,973.83, 30,318.63 and 13,019.78

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Solution

The fourth proportional to 21,973.83, 30,318.63 and 13,019.78 is: 17,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.83 : 30,318.63 = 13,019.78 : x
  2. Step 2: Convert to fraction form
    21,973.83/30,318.63 = 13,019.78/x
  3. Step 3: Cross multiply
    21,973.83x = 30,318.63 × 13,019.78
  4. Step 4: Simplify right side
    21,973.83x = 394,741,827.40
  5. Step 5: Solve for x
    x = 394,741,827.40/21,973.83
  6. Step 6: Final answer
    x = 17,964.18

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