Home / 33,155.28-45,756.36-18,251.28

Finding the Fourth Proportional to 33,155.28, 45,756.36 and 18,251.28

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Solution

The fourth proportional to 33,155.28, 45,756.36 and 18,251.28 is: 25,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,155.28 : 45,756.36 = 18,251.28 : x
  2. Step 2: Convert to fraction form
    33,155.28/45,756.36 = 18,251.28/x
  3. Step 3: Cross multiply
    33,155.28x = 45,756.36 × 18,251.28
  4. Step 4: Simplify right side
    33,155.28x = 835,112,138.14
  5. Step 5: Solve for x
    x = 835,112,138.14/33,155.28
  6. Step 6: Final answer
    x = 25,187.91

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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.