Home / 20,961.53-31,446.23-6,922.18

Finding the Fourth Proportional to 20,961.53, 31,446.23 and 6,922.18

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Solution

The fourth proportional to 20,961.53, 31,446.23 and 6,922.18 is: 10,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961.53 : 31,446.23 = 6,922.18 : x
  2. Step 2: Convert to fraction form
    20,961.53/31,446.23 = 6,922.18/x
  3. Step 3: Cross multiply
    20,961.53x = 31,446.23 × 6,922.18
  4. Step 4: Simplify right side
    20,961.53x = 217,676,557.52
  5. Step 5: Solve for x
    x = 217,676,557.52/20,961.53
  6. Step 6: Final answer
    x = 10,384.57

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