Home / 13,584.74-20,380.04-4,224.57

Finding the Fourth Proportional to 13,584.74, 20,380.04 and 4,224.57

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Solution

The fourth proportional to 13,584.74, 20,380.04 and 4,224.57 is: 6,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.74 : 20,380.04 = 4,224.57 : x
  2. Step 2: Convert to fraction form
    13,584.74/20,380.04 = 4,224.57/x
  3. Step 3: Cross multiply
    13,584.74x = 20,380.04 × 4,224.57
  4. Step 4: Simplify right side
    13,584.74x = 86,096,884.46
  5. Step 5: Solve for x
    x = 86,096,884.46/13,584.74
  6. Step 6: Final answer
    x = 6,337.77

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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.