Home / 20,393.62-30,583.95-13,861.78

Finding the Fourth Proportional to 20,393.62, 30,583.95 and 13,861.78

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Solution

The fourth proportional to 20,393.62, 30,583.95 and 13,861.78 is: 20,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.62 : 30,583.95 = 13,861.78 : x
  2. Step 2: Convert to fraction form
    20,393.62/30,583.95 = 13,861.78/x
  3. Step 3: Cross multiply
    20,393.62x = 30,583.95 × 13,861.78
  4. Step 4: Simplify right side
    20,393.62x = 423,948,097.55
  5. Step 5: Solve for x
    x = 423,948,097.55/20,393.62
  6. Step 6: Final answer
    x = 20,788.27

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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.