Home / 40,309.73-55,629.31-22,405.03

Finding the Fourth Proportional to 40,309.73, 55,629.31 and 22,405.03

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Solution

The fourth proportional to 40,309.73, 55,629.31 and 22,405.03 is: 30,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,309.73 : 55,629.31 = 22,405.03 : x
  2. Step 2: Convert to fraction form
    40,309.73/55,629.31 = 22,405.03/x
  3. Step 3: Cross multiply
    40,309.73x = 55,629.31 × 22,405.03
  4. Step 4: Simplify right side
    40,309.73x = 1,246,376,359.43
  5. Step 5: Solve for x
    x = 1,246,376,359.43/40,309.73
  6. Step 6: Final answer
    x = 30,919.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.