Home / 20,004.28-30,019.38-11,256.28

Finding the Fourth Proportional to 20,004.28, 30,019.38 and 11,256.28

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Solution

The fourth proportional to 20,004.28, 30,019.38 and 11,256.28 is: 16,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.28 : 30,019.38 = 11,256.28 : x
  2. Step 2: Convert to fraction form
    20,004.28/30,019.38 = 11,256.28/x
  3. Step 3: Cross multiply
    20,004.28x = 30,019.38 × 11,256.28
  4. Step 4: Simplify right side
    20,004.28x = 337,906,546.71
  5. Step 5: Solve for x
    x = 337,906,546.71/20,004.28
  6. Step 6: Final answer
    x = 16,891.71

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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.