Home / 39,825.07-54,957.93-21,919.71

Finding the Fourth Proportional to 39,825.07, 54,957.93 and 21,919.71

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Solution

The fourth proportional to 39,825.07, 54,957.93 and 21,919.71 is: 30,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.07 : 54,957.93 = 21,919.71 : x
  2. Step 2: Convert to fraction form
    39,825.07/54,957.93 = 21,919.71/x
  3. Step 3: Cross multiply
    39,825.07x = 54,957.93 × 21,919.71
  4. Step 4: Simplify right side
    39,825.07x = 1,204,661,887.80
  5. Step 5: Solve for x
    x = 1,204,661,887.80/39,825.07
  6. Step 6: Final answer
    x = 30,248.83

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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.