Home / 20,974.55-28,944.42-12,027.32

Finding the Fourth Proportional to 20,974.55, 28,944.42 and 12,027.32

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Solution

The fourth proportional to 20,974.55, 28,944.42 and 12,027.32 is: 16,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.55 : 28,944.42 = 12,027.32 : x
  2. Step 2: Convert to fraction form
    20,974.55/28,944.42 = 12,027.32/x
  3. Step 3: Cross multiply
    20,974.55x = 28,944.42 × 12,027.32
  4. Step 4: Simplify right side
    20,974.55x = 348,123,801.55
  5. Step 5: Solve for x
    x = 348,123,801.55/20,974.55
  6. Step 6: Final answer
    x = 16,597.44

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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.