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Finding the Fourth Proportional to 36,672.56, 50,603.72 and 20,540.70

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Solution

The fourth proportional to 36,672.56, 50,603.72 and 20,540.70 is: 28,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,672.56 : 50,603.72 = 20,540.70 : x
  2. Step 2: Convert to fraction form
    36,672.56/50,603.72 = 20,540.70/x
  3. Step 3: Cross multiply
    36,672.56x = 50,603.72 × 20,540.70
  4. Step 4: Simplify right side
    36,672.56x = 1,039,435,728.70
  5. Step 5: Solve for x
    x = 1,039,435,728.70/36,672.56
  6. Step 6: Final answer
    x = 28,343.69

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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.