Home / 21,181.29-29,231.13-11,749.86

Finding the Fourth Proportional to 21,181.29, 29,231.13 and 11,749.86

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Solution

The fourth proportional to 21,181.29, 29,231.13 and 11,749.86 is: 16,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181.29 : 29,231.13 = 11,749.86 : x
  2. Step 2: Convert to fraction form
    21,181.29/29,231.13 = 11,749.86/x
  3. Step 3: Cross multiply
    21,181.29x = 29,231.13 × 11,749.86
  4. Step 4: Simplify right side
    21,181.29x = 343,461,685.14
  5. Step 5: Solve for x
    x = 343,461,685.14/21,181.29
  6. Step 6: Final answer
    x = 16,215.33

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