Home / 20,035.20-30,025.44-7,542.66

Finding the Fourth Proportional to 20,035.20, 30,025.44 and 7,542.66

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Solution

The fourth proportional to 20,035.20, 30,025.44 and 7,542.66 is: 11,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.20 : 30,025.44 = 7,542.66 : x
  2. Step 2: Convert to fraction form
    20,035.20/30,025.44 = 7,542.66/x
  3. Step 3: Cross multiply
    20,035.20x = 30,025.44 × 7,542.66
  4. Step 4: Simplify right side
    20,035.20x = 226,471,685.27
  5. Step 5: Solve for x
    x = 226,471,685.27/20,035.20
  6. Step 6: Final answer
    x = 11,303.69

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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.