Home / 33,120.56-45,708.60-18,217.52

Finding the Fourth Proportional to 33,120.56, 45,708.60 and 18,217.52

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Solution

The fourth proportional to 33,120.56, 45,708.60 and 18,217.52 is: 25,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.56 : 45,708.60 = 18,217.52 : x
  2. Step 2: Convert to fraction form
    33,120.56/45,708.60 = 18,217.52/x
  3. Step 3: Cross multiply
    33,120.56x = 45,708.60 × 18,217.52
  4. Step 4: Simplify right side
    33,120.56x = 832,697,334.67
  5. Step 5: Solve for x
    x = 832,697,334.67/33,120.56
  6. Step 6: Final answer
    x = 25,141.40

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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.