Home / 28,575.75-39,425.42-18,511.91

Finding the Fourth Proportional to 28,575.75, 39,425.42 and 18,511.91

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Solution

The fourth proportional to 28,575.75, 39,425.42 and 18,511.91 is: 25,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.75 : 39,425.42 = 18,511.91 : x
  2. Step 2: Convert to fraction form
    28,575.75/39,425.42 = 18,511.91/x
  3. Step 3: Cross multiply
    28,575.75x = 39,425.42 × 18,511.91
  4. Step 4: Simplify right side
    28,575.75x = 729,839,675.90
  5. Step 5: Solve for x
    x = 729,839,675.90/28,575.75
  6. Step 6: Final answer
    x = 25,540.53

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