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Finding the Fourth Proportional to 36,785, 50,759.79 and 20,648.62

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Solution

The fourth proportional to 36,785, 50,759.79 and 20,648.62 is: 28,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,785 : 50,759.79 = 20,648.62 : x
  2. Step 2: Convert to fraction form
    36,785/50,759.79 = 20,648.62/x
  3. Step 3: Cross multiply
    36,785x = 50,759.79 × 20,648.62
  4. Step 4: Simplify right side
    36,785x = 1,048,119,361.19
  5. Step 5: Solve for x
    x = 1,048,119,361.19/36,785
  6. Step 6: Final answer
    x = 28,493.12

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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.