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Finding the Fourth Proportional to 36,393.87, 50,224.52 and 20,478.88

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Solution

The fourth proportional to 36,393.87, 50,224.52 and 20,478.88 is: 28,261.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,393.87 : 50,224.52 = 20,478.88 : x
  2. Step 2: Convert to fraction form
    36,393.87/50,224.52 = 20,478.88/x
  3. Step 3: Cross multiply
    36,393.87x = 50,224.52 × 20,478.88
  4. Step 4: Simplify right side
    36,393.87x = 1,028,541,918.14
  5. Step 5: Solve for x
    x = 1,028,541,918.14/36,393.87
  6. Step 6: Final answer
    x = 28,261.41

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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.