Home / 36,921.12-55,293.36-20,255.52

Finding the Fourth Proportional to 36,921.12, 55,293.36 and 20,255.52

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Solution

The fourth proportional to 36,921.12, 55,293.36 and 20,255.52 is: 30,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.12 : 55,293.36 = 20,255.52 : x
  2. Step 2: Convert to fraction form
    36,921.12/55,293.36 = 20,255.52/x
  3. Step 3: Cross multiply
    36,921.12x = 55,293.36 × 20,255.52
  4. Step 4: Simplify right side
    36,921.12x = 1,119,995,759.35
  5. Step 5: Solve for x
    x = 1,119,995,759.35/36,921.12
  6. Step 6: Final answer
    x = 30,334.83

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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.