Home / 20,560.41-30,808.31-15,891.85

Finding the Fourth Proportional to 20,560.41, 30,808.31 and 15,891.85

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Solution

The fourth proportional to 20,560.41, 30,808.31 and 15,891.85 is: 23,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.41 : 30,808.31 = 15,891.85 : x
  2. Step 2: Convert to fraction form
    20,560.41/30,808.31 = 15,891.85/x
  3. Step 3: Cross multiply
    20,560.41x = 30,808.31 × 15,891.85
  4. Step 4: Simplify right side
    20,560.41x = 489,601,041.27
  5. Step 5: Solve for x
    x = 489,601,041.27/20,560.41
  6. Step 6: Final answer
    x = 23,812.81

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