Home / 30,163.20-45,226.58-13,520.13

Finding the Fourth Proportional to 30,163.20, 45,226.58 and 13,520.13

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Solution

The fourth proportional to 30,163.20, 45,226.58 and 13,520.13 is: 20,272.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.20 : 45,226.58 = 13,520.13 : x
  2. Step 2: Convert to fraction form
    30,163.20/45,226.58 = 13,520.13/x
  3. Step 3: Cross multiply
    30,163.20x = 45,226.58 × 13,520.13
  4. Step 4: Simplify right side
    30,163.20x = 611,469,173.45
  5. Step 5: Solve for x
    x = 611,469,173.45/30,163.20
  6. Step 6: Final answer
    x = 20,272.03

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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.