Home / 33,128.28-45,716.13-18,790.74

Finding the Fourth Proportional to 33,128.28, 45,716.13 and 18,790.74

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Solution

The fourth proportional to 33,128.28, 45,716.13 and 18,790.74 is: 25,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.28 : 45,716.13 = 18,790.74 : x
  2. Step 2: Convert to fraction form
    33,128.28/45,716.13 = 18,790.74/x
  3. Step 3: Cross multiply
    33,128.28x = 45,716.13 × 18,790.74
  4. Step 4: Simplify right side
    33,128.28x = 859,039,912.64
  5. Step 5: Solve for x
    x = 859,039,912.64/33,128.28
  6. Step 6: Final answer
    x = 25,930.71

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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.