Home / 39,268.40-54,190.96-21,363.41

Finding the Fourth Proportional to 39,268.40, 54,190.96 and 21,363.41

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Solution

The fourth proportional to 39,268.40, 54,190.96 and 21,363.41 is: 29,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,268.40 : 54,190.96 = 21,363.41 : x
  2. Step 2: Convert to fraction form
    39,268.40/54,190.96 = 21,363.41/x
  3. Step 3: Cross multiply
    39,268.40x = 54,190.96 × 21,363.41
  4. Step 4: Simplify right side
    39,268.40x = 1,157,703,778.84
  5. Step 5: Solve for x
    x = 1,157,703,778.84/39,268.40
  6. Step 6: Final answer
    x = 29,481.82

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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.