Home / 36,385.78-50,212.30-20,470.25

Finding the Fourth Proportional to 36,385.78, 50,212.30 and 20,470.25

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Solution

The fourth proportional to 36,385.78, 50,212.30 and 20,470.25 is: 28,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,385.78 : 50,212.30 = 20,470.25 : x
  2. Step 2: Convert to fraction form
    36,385.78/50,212.30 = 20,470.25/x
  3. Step 3: Cross multiply
    36,385.78x = 50,212.30 × 20,470.25
  4. Step 4: Simplify right side
    36,385.78x = 1,027,858,334.08
  5. Step 5: Solve for x
    x = 1,027,858,334.08/36,385.78
  6. Step 6: Final answer
    x = 28,248.90

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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.