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Finding the Fourth Proportional to 36,396.30, 50,225.88 and 20,479.80

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Solution

The fourth proportional to 36,396.30, 50,225.88 and 20,479.80 is: 28,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,396.30 : 50,225.88 = 20,479.80 : x
  2. Step 2: Convert to fraction form
    36,396.30/50,225.88 = 20,479.80/x
  3. Step 3: Cross multiply
    36,396.30x = 50,225.88 × 20,479.80
  4. Step 4: Simplify right side
    36,396.30x = 1,028,615,977.22
  5. Step 5: Solve for x
    x = 1,028,615,977.22/36,396.30
  6. Step 6: Final answer
    x = 28,261.55

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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.