Home / 20,213.52-30,334.44-11,319.60

Finding the Fourth Proportional to 20,213.52, 30,334.44 and 11,319.60

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Solution

The fourth proportional to 20,213.52, 30,334.44 and 11,319.60 is: 16,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.52 : 30,334.44 = 11,319.60 : x
  2. Step 2: Convert to fraction form
    20,213.52/30,334.44 = 11,319.60/x
  3. Step 3: Cross multiply
    20,213.52x = 30,334.44 × 11,319.60
  4. Step 4: Simplify right side
    20,213.52x = 343,373,727.02
  5. Step 5: Solve for x
    x = 343,373,727.02/20,213.52
  6. Step 6: Final answer
    x = 16,987.33

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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.