Home / 39,824.97-54,957.49-21,919.82

Finding the Fourth Proportional to 39,824.97, 54,957.49 and 21,919.82

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Solution

The fourth proportional to 39,824.97, 54,957.49 and 21,919.82 is: 30,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,824.97 : 54,957.49 = 21,919.82 : x
  2. Step 2: Convert to fraction form
    39,824.97/54,957.49 = 21,919.82/x
  3. Step 3: Cross multiply
    39,824.97x = 54,957.49 × 21,919.82
  4. Step 4: Simplify right side
    39,824.97x = 1,204,657,958.86
  5. Step 5: Solve for x
    x = 1,204,657,958.86/39,824.97
  6. Step 6: Final answer
    x = 30,248.81

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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.