Home / 36,630.20-54,945.30-21,855.80

Finding the Fourth Proportional to 36,630.20, 54,945.30 and 21,855.80

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Solution

The fourth proportional to 36,630.20, 54,945.30 and 21,855.80 is: 32,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,630.20 : 54,945.30 = 21,855.80 : x
  2. Step 2: Convert to fraction form
    36,630.20/54,945.30 = 21,855.80/x
  3. Step 3: Cross multiply
    36,630.20x = 54,945.30 × 21,855.80
  4. Step 4: Simplify right side
    36,630.20x = 1,200,873,487.74
  5. Step 5: Solve for x
    x = 1,200,873,487.74/36,630.20
  6. Step 6: Final answer
    x = 32,783.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.