Home / 20,827.84-31,245.36-9,142.24

Finding the Fourth Proportional to 20,827.84, 31,245.36 and 9,142.24

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Solution

The fourth proportional to 20,827.84, 31,245.36 and 9,142.24 is: 13,714.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.84 : 31,245.36 = 9,142.24 : x
  2. Step 2: Convert to fraction form
    20,827.84/31,245.36 = 9,142.24/x
  3. Step 3: Cross multiply
    20,827.84x = 31,245.36 × 9,142.24
  4. Step 4: Simplify right side
    20,827.84x = 285,652,580.01
  5. Step 5: Solve for x
    x = 285,652,580.01/20,827.84
  6. Step 6: Final answer
    x = 13,714.94

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