Home / 19,981.68-27,557.78-12,022.41

Finding the Fourth Proportional to 19,981.68, 27,557.78 and 12,022.41

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Solution

The fourth proportional to 19,981.68, 27,557.78 and 12,022.41 is: 16,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.68 : 27,557.78 = 12,022.41 : x
  2. Step 2: Convert to fraction form
    19,981.68/27,557.78 = 12,022.41/x
  3. Step 3: Cross multiply
    19,981.68x = 27,557.78 × 12,022.41
  4. Step 4: Simplify right side
    19,981.68x = 331,310,929.85
  5. Step 5: Solve for x
    x = 331,310,929.85/19,981.68
  6. Step 6: Final answer
    x = 16,580.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.