Home / 20,105.19-30,168.32-9,586.94

Finding the Fourth Proportional to 20,105.19, 30,168.32 and 9,586.94

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Solution

The fourth proportional to 20,105.19, 30,168.32 and 9,586.94 is: 14,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.19 : 30,168.32 = 9,586.94 : x
  2. Step 2: Convert to fraction form
    20,105.19/30,168.32 = 9,586.94/x
  3. Step 3: Cross multiply
    20,105.19x = 30,168.32 × 9,586.94
  4. Step 4: Simplify right side
    20,105.19x = 289,221,674.96
  5. Step 5: Solve for x
    x = 289,221,674.96/20,105.19
  6. Step 6: Final answer
    x = 14,385.42

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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.