Home / 36,520.12-54,769.20-18,980.36

Finding the Fourth Proportional to 36,520.12, 54,769.20 and 18,980.36

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Solution

The fourth proportional to 36,520.12, 54,769.20 and 18,980.36 is: 28,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,520.12 : 54,769.20 = 18,980.36 : x
  2. Step 2: Convert to fraction form
    36,520.12/54,769.20 = 18,980.36/x
  3. Step 3: Cross multiply
    36,520.12x = 54,769.20 × 18,980.36
  4. Step 4: Simplify right side
    36,520.12x = 1,039,539,132.91
  5. Step 5: Solve for x
    x = 1,039,539,132.91/36,520.12
  6. Step 6: Final answer
    x = 28,464.83

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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.