Home / 20,711.93-28,582.77-11,280.48

Finding the Fourth Proportional to 20,711.93, 28,582.77 and 11,280.48

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Solution

The fourth proportional to 20,711.93, 28,582.77 and 11,280.48 is: 15,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.93 : 28,582.77 = 11,280.48 : x
  2. Step 2: Convert to fraction form
    20,711.93/28,582.77 = 11,280.48/x
  3. Step 3: Cross multiply
    20,711.93x = 28,582.77 × 11,280.48
  4. Step 4: Simplify right side
    20,711.93x = 322,427,365.33
  5. Step 5: Solve for x
    x = 322,427,365.33/20,711.93
  6. Step 6: Final answer
    x = 15,567.23

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