Home / 50,619.28-75,921.36-20,628.22

Finding the Fourth Proportional to 50,619.28, 75,921.36 and 20,628.22

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Solution

The fourth proportional to 50,619.28, 75,921.36 and 20,628.22 is: 30,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,619.28 : 75,921.36 = 20,628.22 : x
  2. Step 2: Convert to fraction form
    50,619.28/75,921.36 = 20,628.22/x
  3. Step 3: Cross multiply
    50,619.28x = 75,921.36 × 20,628.22
  4. Step 4: Simplify right side
    50,619.28x = 1,566,122,516.78
  5. Step 5: Solve for x
    x = 1,566,122,516.78/50,619.28
  6. Step 6: Final answer
    x = 30,939.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.