Home / 20,334.39-30,480.69-11,550.55

Finding the Fourth Proportional to 20,334.39, 30,480.69 and 11,550.55

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Solution

The fourth proportional to 20,334.39, 30,480.69 and 11,550.55 is: 17,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334.39 : 30,480.69 = 11,550.55 : x
  2. Step 2: Convert to fraction form
    20,334.39/30,480.69 = 11,550.55/x
  3. Step 3: Cross multiply
    20,334.39x = 30,480.69 × 11,550.55
  4. Step 4: Simplify right side
    20,334.39x = 352,068,733.88
  5. Step 5: Solve for x
    x = 352,068,733.88/20,334.39
  6. Step 6: Final answer
    x = 17,313.96

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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.