Home / 39,219.20-58,816.16-12,917.68

Finding the Fourth Proportional to 39,219.20, 58,816.16 and 12,917.68

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Solution

The fourth proportional to 39,219.20, 58,816.16 and 12,917.68 is: 19,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.20 : 58,816.16 = 12,917.68 : x
  2. Step 2: Convert to fraction form
    39,219.20/58,816.16 = 12,917.68/x
  3. Step 3: Cross multiply
    39,219.20x = 58,816.16 × 12,917.68
  4. Step 4: Simplify right side
    39,219.20x = 759,768,333.71
  5. Step 5: Solve for x
    x = 759,768,333.71/39,219.20
  6. Step 6: Final answer
    x = 19,372.36

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