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Finding the Fourth Proportional to 36,425.30, 50,269.84 and 20,508.80

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Solution

The fourth proportional to 36,425.30, 50,269.84 and 20,508.80 is: 28,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,425.30 : 50,269.84 = 20,508.80 : x
  2. Step 2: Convert to fraction form
    36,425.30/50,269.84 = 20,508.80/x
  3. Step 3: Cross multiply
    36,425.30x = 50,269.84 × 20,508.80
  4. Step 4: Simplify right side
    36,425.30x = 1,030,974,094.59
  5. Step 5: Solve for x
    x = 1,030,974,094.59/36,425.30
  6. Step 6: Final answer
    x = 28,303.79

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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.