Home / 20,338.97-30,505.32-5,549.09

Finding the Fourth Proportional to 20,338.97, 30,505.32 and 5,549.09

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Solution

The fourth proportional to 20,338.97, 30,505.32 and 5,549.09 is: 8,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.97 : 30,505.32 = 5,549.09 : x
  2. Step 2: Convert to fraction form
    20,338.97/30,505.32 = 5,549.09/x
  3. Step 3: Cross multiply
    20,338.97x = 30,505.32 × 5,549.09
  4. Step 4: Simplify right side
    20,338.97x = 169,276,766.16
  5. Step 5: Solve for x
    x = 169,276,766.16/20,338.97
  6. Step 6: Final answer
    x = 8,322.78

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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.