Home / 39,403.97-54,377.21-22,408.22

Finding the Fourth Proportional to 39,403.97, 54,377.21 and 22,408.22

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Solution

The fourth proportional to 39,403.97, 54,377.21 and 22,408.22 is: 30,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,403.97 : 54,377.21 = 22,408.22 : x
  2. Step 2: Convert to fraction form
    39,403.97/54,377.21 = 22,408.22/x
  3. Step 3: Cross multiply
    39,403.97x = 54,377.21 × 22,408.22
  4. Step 4: Simplify right side
    39,403.97x = 1,218,496,100.74
  5. Step 5: Solve for x
    x = 1,218,496,100.74/39,403.97
  6. Step 6: Final answer
    x = 30,923.19

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Double scale
Find fourth proportional to 39,404.97, 54,378.58 and 22,409.22
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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.