Home / 21,280.36-31,926.30-7,430.44

Finding the Fourth Proportional to 21,280.36, 31,926.30 and 7,430.44

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Solution

The fourth proportional to 21,280.36, 31,926.30 and 7,430.44 is: 11,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280.36 : 31,926.30 = 7,430.44 : x
  2. Step 2: Convert to fraction form
    21,280.36/31,926.30 = 7,430.44/x
  3. Step 3: Cross multiply
    21,280.36x = 31,926.30 × 7,430.44
  4. Step 4: Simplify right side
    21,280.36x = 237,226,456.57
  5. Step 5: Solve for x
    x = 237,226,456.57/21,280.36
  6. Step 6: Final answer
    x = 11,147.67

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