Home / 33,222.75-45,847.40-18,318.75

Finding the Fourth Proportional to 33,222.75, 45,847.40 and 18,318.75

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Solution

The fourth proportional to 33,222.75, 45,847.40 and 18,318.75 is: 25,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,222.75 : 45,847.40 = 18,318.75 : x
  2. Step 2: Convert to fraction form
    33,222.75/45,847.40 = 18,318.75/x
  3. Step 3: Cross multiply
    33,222.75x = 45,847.40 × 18,318.75
  4. Step 4: Simplify right side
    33,222.75x = 839,867,058.75
  5. Step 5: Solve for x
    x = 839,867,058.75/33,222.75
  6. Step 6: Final answer
    x = 25,279.88

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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.