Home / 39,838.58-54,976.92-21,933.88

Finding the Fourth Proportional to 39,838.58, 54,976.92 and 21,933.88

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Solution

The fourth proportional to 39,838.58, 54,976.92 and 21,933.88 is: 30,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,838.58 : 54,976.92 = 21,933.88 : x
  2. Step 2: Convert to fraction form
    39,838.58/54,976.92 = 21,933.88/x
  3. Step 3: Cross multiply
    39,838.58x = 54,976.92 × 21,933.88
  4. Step 4: Simplify right side
    39,838.58x = 1,205,857,166.05
  5. Step 5: Solve for x
    x = 1,205,857,166.05/39,838.58
  6. Step 6: Final answer
    x = 30,268.58

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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.