Home / 21,867.88-30,178.34-12,437.80

Finding the Fourth Proportional to 21,867.88, 30,178.34 and 12,437.80

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Solution

The fourth proportional to 21,867.88, 30,178.34 and 12,437.80 is: 17,164.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.88 : 30,178.34 = 12,437.80 : x
  2. Step 2: Convert to fraction form
    21,867.88/30,178.34 = 12,437.80/x
  3. Step 3: Cross multiply
    21,867.88x = 30,178.34 × 12,437.80
  4. Step 4: Simplify right side
    21,867.88x = 375,352,157.25
  5. Step 5: Solve for x
    x = 375,352,157.25/21,867.88
  6. Step 6: Final answer
    x = 17,164.54

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