Home / 36,215.43-54,289.12-18,680.55

Finding the Fourth Proportional to 36,215.43, 54,289.12 and 18,680.55

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Solution

The fourth proportional to 36,215.43, 54,289.12 and 18,680.55 is: 28,003.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,215.43 : 54,289.12 = 18,680.55 : x
  2. Step 2: Convert to fraction form
    36,215.43/54,289.12 = 18,680.55/x
  3. Step 3: Cross multiply
    36,215.43x = 54,289.12 × 18,680.55
  4. Step 4: Simplify right side
    36,215.43x = 1,014,150,620.62
  5. Step 5: Solve for x
    x = 1,014,150,620.62/36,215.43
  6. Step 6: Final answer
    x = 28,003.27

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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.