Home / 31,110.72-42,919.13-21,035.52

Finding the Fourth Proportional to 31,110.72, 42,919.13 and 21,035.52

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Solution

The fourth proportional to 31,110.72, 42,919.13 and 21,035.52 is: 29,019.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,110.72 : 42,919.13 = 21,035.52 : x
  2. Step 2: Convert to fraction form
    31,110.72/42,919.13 = 21,035.52/x
  3. Step 3: Cross multiply
    31,110.72x = 42,919.13 × 21,035.52
  4. Step 4: Simplify right side
    31,110.72x = 902,826,217.50
  5. Step 5: Solve for x
    x = 902,826,217.50/31,110.72
  6. Step 6: Final answer
    x = 29,019.78

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