Home / 39,799.41-54,922.01-21,894.41

Finding the Fourth Proportional to 39,799.41, 54,922.01 and 21,894.41

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Solution

The fourth proportional to 39,799.41, 54,922.01 and 21,894.41 is: 30,213.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.41 : 54,922.01 = 21,894.41 : x
  2. Step 2: Convert to fraction form
    39,799.41/54,922.01 = 21,894.41/x
  3. Step 3: Cross multiply
    39,799.41x = 54,922.01 × 21,894.41
  4. Step 4: Simplify right side
    39,799.41x = 1,202,484,620.88
  5. Step 5: Solve for x
    x = 1,202,484,620.88/39,799.41
  6. Step 6: Final answer
    x = 30,213.63

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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.