Home / 39,799.43-54,922.32-21,894.04

Finding the Fourth Proportional to 39,799.43, 54,922.32 and 21,894.04

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Solution

The fourth proportional to 39,799.43, 54,922.32 and 21,894.04 is: 30,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.43 : 54,922.32 = 21,894.04 : x
  2. Step 2: Convert to fraction form
    39,799.43/54,922.32 = 21,894.04/x
  3. Step 3: Cross multiply
    39,799.43x = 54,922.32 × 21,894.04
  4. Step 4: Simplify right side
    39,799.43x = 1,202,471,470.97
  5. Step 5: Solve for x
    x = 1,202,471,470.97/39,799.43
  6. Step 6: Final answer
    x = 30,213.28

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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.