Home / 36,899.12-50,919.36-20,132.12

Finding the Fourth Proportional to 36,899.12, 50,919.36 and 20,132.12

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Solution

The fourth proportional to 36,899.12, 50,919.36 and 20,132.12 is: 27,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,899.12 : 50,919.36 = 20,132.12 : x
  2. Step 2: Convert to fraction form
    36,899.12/50,919.36 = 20,132.12/x
  3. Step 3: Cross multiply
    36,899.12x = 50,919.36 × 20,132.12
  4. Step 4: Simplify right side
    36,899.12x = 1,025,114,665.84
  5. Step 5: Solve for x
    x = 1,025,114,665.84/36,899.12
  6. Step 6: Final answer
    x = 27,781.55

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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.