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Finding the Fourth Proportional to 36,879.30, 50,892.96 and 20,962.71

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Solution

The fourth proportional to 36,879.30, 50,892.96 and 20,962.71 is: 28,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,879.30 : 50,892.96 = 20,962.71 : x
  2. Step 2: Convert to fraction form
    36,879.30/50,892.96 = 20,962.71/x
  3. Step 3: Cross multiply
    36,879.30x = 50,892.96 × 20,962.71
  4. Step 4: Simplify right side
    36,879.30x = 1,066,854,107.06
  5. Step 5: Solve for x
    x = 1,066,854,107.06/36,879.30
  6. Step 6: Final answer
    x = 28,928.27

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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.