Home / 39,825.14-54,960.66-21,919.95

Finding the Fourth Proportional to 39,825.14, 54,960.66 and 21,919.95

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Solution

The fourth proportional to 39,825.14, 54,960.66 and 21,919.95 is: 30,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.14 : 54,960.66 = 21,919.95 : x
  2. Step 2: Convert to fraction form
    39,825.14/54,960.66 = 21,919.95/x
  3. Step 3: Cross multiply
    39,825.14x = 54,960.66 × 21,919.95
  4. Step 4: Simplify right side
    39,825.14x = 1,204,734,919.17
  5. Step 5: Solve for x
    x = 1,204,734,919.17/39,825.14
  6. Step 6: Final answer
    x = 30,250.62

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1.5x scale

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.