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Finding the Fourth Proportional to 20,552.60, 30,861.30 and 11,804.60

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Solution

The fourth proportional to 20,552.60, 30,861.30 and 11,804.60 is: 17,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.60 : 30,861.30 = 11,804.60 : x
  2. Step 2: Convert to fraction form
    20,552.60/30,861.30 = 11,804.60/x
  3. Step 3: Cross multiply
    20,552.60x = 30,861.30 × 11,804.60
  4. Step 4: Simplify right side
    20,552.60x = 364,305,301.98
  5. Step 5: Solve for x
    x = 364,305,301.98/20,552.60
  6. Step 6: Final answer
    x = 17,725.51

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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.