Home / 39,799.47-54,923.39-21,895.61

Finding the Fourth Proportional to 39,799.47, 54,923.39 and 21,895.61

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Solution

The fourth proportional to 39,799.47, 54,923.39 and 21,895.61 is: 30,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.47 : 54,923.39 = 21,895.61 : x
  2. Step 2: Convert to fraction form
    39,799.47/54,923.39 = 21,895.61/x
  3. Step 3: Cross multiply
    39,799.47x = 54,923.39 × 21,895.61
  4. Step 4: Simplify right side
    39,799.47x = 1,202,580,743.22
  5. Step 5: Solve for x
    x = 1,202,580,743.22/39,799.47
  6. Step 6: Final answer
    x = 30,216.00

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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.