Home / 33,269.94-45,912.20-20,518.02

Finding the Fourth Proportional to 33,269.94, 45,912.20 and 20,518.02

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Solution

The fourth proportional to 33,269.94, 45,912.20 and 20,518.02 is: 28,314.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,269.94 : 45,912.20 = 20,518.02 : x
  2. Step 2: Convert to fraction form
    33,269.94/45,912.20 = 20,518.02/x
  3. Step 3: Cross multiply
    33,269.94x = 45,912.20 × 20,518.02
  4. Step 4: Simplify right side
    33,269.94x = 942,027,335.25
  5. Step 5: Solve for x
    x = 942,027,335.25/33,269.94
  6. Step 6: Final answer
    x = 28,314.67

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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.