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Finding the Fourth Proportional to 36,397.20, 50,226.02 and 20,480.70

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Solution

The fourth proportional to 36,397.20, 50,226.02 and 20,480.70 is: 28,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,397.20 : 50,226.02 = 20,480.70 : x
  2. Step 2: Convert to fraction form
    36,397.20/50,226.02 = 20,480.70/x
  3. Step 3: Cross multiply
    36,397.20x = 50,226.02 × 20,480.70
  4. Step 4: Simplify right side
    36,397.20x = 1,028,664,047.81
  5. Step 5: Solve for x
    x = 1,028,664,047.81/36,397.20
  6. Step 6: Final answer
    x = 28,262.18

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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.