Home / 22,230.76-33,204.16-20,119.15

Finding the Fourth Proportional to 22,230.76, 33,204.16 and 20,119.15

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Solution

The fourth proportional to 22,230.76, 33,204.16 and 20,119.15 is: 30,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,230.76 : 33,204.16 = 20,119.15 : x
  2. Step 2: Convert to fraction form
    22,230.76/33,204.16 = 20,119.15/x
  3. Step 3: Cross multiply
    22,230.76x = 33,204.16 × 20,119.15
  4. Step 4: Simplify right side
    22,230.76x = 668,039,475.66
  5. Step 5: Solve for x
    x = 668,039,475.66/22,230.76
  6. Step 6: Final answer
    x = 30,050.23

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Double scale
Find fourth proportional to 22,231.76, 33,205.65 and 20,120.15
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.