Home / 20,089.35-30,134.04-8,240.94

Finding the Fourth Proportional to 20,089.35, 30,134.04 and 8,240.94

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Solution

The fourth proportional to 20,089.35, 30,134.04 and 8,240.94 is: 12,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.35 : 30,134.04 = 8,240.94 : x
  2. Step 2: Convert to fraction form
    20,089.35/30,134.04 = 8,240.94/x
  3. Step 3: Cross multiply
    20,089.35x = 30,134.04 × 8,240.94
  4. Step 4: Simplify right side
    20,089.35x = 248,332,815.60
  5. Step 5: Solve for x
    x = 248,332,815.60/20,089.35
  6. Step 6: Final answer
    x = 12,361.42

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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.