Home / 39,893.43-55,052.21-21,744.33

Finding the Fourth Proportional to 39,893.43, 55,052.21 and 21,744.33

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Solution

The fourth proportional to 39,893.43, 55,052.21 and 21,744.33 is: 30,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.43 : 55,052.21 = 21,744.33 : x
  2. Step 2: Convert to fraction form
    39,893.43/55,052.21 = 21,744.33/x
  3. Step 3: Cross multiply
    39,893.43x = 55,052.21 × 21,744.33
  4. Step 4: Simplify right side
    39,893.43x = 1,197,073,312.75
  5. Step 5: Solve for x
    x = 1,197,073,312.75/39,893.43
  6. Step 6: Final answer
    x = 30,006.78

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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.