Home / 20,072.54-27,669.12-16,529.60

Finding the Fourth Proportional to 20,072.54, 27,669.12 and 16,529.60

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Solution

The fourth proportional to 20,072.54, 27,669.12 and 16,529.60 is: 22,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.54 : 27,669.12 = 16,529.60 : x
  2. Step 2: Convert to fraction form
    20,072.54/27,669.12 = 16,529.60/x
  3. Step 3: Cross multiply
    20,072.54x = 27,669.12 × 16,529.60
  4. Step 4: Simplify right side
    20,072.54x = 457,359,485.95
  5. Step 5: Solve for x
    x = 457,359,485.95/20,072.54
  6. Step 6: Final answer
    x = 22,785.33

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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.