Home / 20,449.50-30,674.20-6,410.61

Finding the Fourth Proportional to 20,449.50, 30,674.20 and 6,410.61

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Solution

The fourth proportional to 20,449.50, 30,674.20 and 6,410.61 is: 9,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.50 : 30,674.20 = 6,410.61 : x
  2. Step 2: Convert to fraction form
    20,449.50/30,674.20 = 6,410.61/x
  3. Step 3: Cross multiply
    20,449.50x = 30,674.20 × 6,410.61
  4. Step 4: Simplify right side
    20,449.50x = 196,640,333.26
  5. Step 5: Solve for x
    x = 196,640,333.26/20,449.50
  6. Step 6: Final answer
    x = 9,615.90

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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.