Home / 33,132.75-45,723.20-18,228.75

Finding the Fourth Proportional to 33,132.75, 45,723.20 and 18,228.75

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Solution

The fourth proportional to 33,132.75, 45,723.20 and 18,228.75 is: 25,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,132.75 : 45,723.20 = 18,228.75 : x
  2. Step 2: Convert to fraction form
    33,132.75/45,723.20 = 18,228.75/x
  3. Step 3: Cross multiply
    33,132.75x = 45,723.20 × 18,228.75
  4. Step 4: Simplify right side
    33,132.75x = 833,476,690.86
  5. Step 5: Solve for x
    x = 833,476,690.86/33,132.75
  6. Step 6: Final answer
    x = 25,155.68

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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.