Home / 18,826.18-28,238.79-4,975.30

Finding the Fourth Proportional to 18,826.18, 28,238.79 and 4,975.30

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Solution

The fourth proportional to 18,826.18, 28,238.79 and 4,975.30 is: 7,462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.18 : 28,238.79 = 4,975.30 : x
  2. Step 2: Convert to fraction form
    18,826.18/28,238.79 = 4,975.30/x
  3. Step 3: Cross multiply
    18,826.18x = 28,238.79 × 4,975.30
  4. Step 4: Simplify right side
    18,826.18x = 140,496,451.89
  5. Step 5: Solve for x
    x = 140,496,451.89/18,826.18
  6. Step 6: Final answer
    x = 7,462.82

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