Home / 39,797.14-54,919.75-21,891.76

Finding the Fourth Proportional to 39,797.14, 54,919.75 and 21,891.76

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Solution

The fourth proportional to 39,797.14, 54,919.75 and 21,891.76 is: 30,210.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,797.14 : 54,919.75 = 21,891.76 : x
  2. Step 2: Convert to fraction form
    39,797.14/54,919.75 = 21,891.76/x
  3. Step 3: Cross multiply
    39,797.14x = 54,919.75 × 21,891.76
  4. Step 4: Simplify right side
    39,797.14x = 1,202,289,986.26
  5. Step 5: Solve for x
    x = 1,202,289,986.26/39,797.14
  6. Step 6: Final answer
    x = 30,210.46

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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.