Home / 33,039.28-45,632.05-21,759.20

Finding the Fourth Proportional to 33,039.28, 45,632.05 and 21,759.20

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Solution

The fourth proportional to 33,039.28, 45,632.05 and 21,759.20 is: 30,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,039.28 : 45,632.05 = 21,759.20 : x
  2. Step 2: Convert to fraction form
    33,039.28/45,632.05 = 21,759.20/x
  3. Step 3: Cross multiply
    33,039.28x = 45,632.05 × 21,759.20
  4. Step 4: Simplify right side
    33,039.28x = 992,916,790.92
  5. Step 5: Solve for x
    x = 992,916,790.92/33,039.28
  6. Step 6: Final answer
    x = 30,052.61

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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.