Home / 26,540.73-36,640.31-20,558.97

Finding the Fourth Proportional to 26,540.73, 36,640.31 and 20,558.97

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Solution

The fourth proportional to 26,540.73, 36,640.31 and 20,558.97 is: 28,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,540.73 : 36,640.31 = 20,558.97 : x
  2. Step 2: Convert to fraction form
    26,540.73/36,640.31 = 20,558.97/x
  3. Step 3: Cross multiply
    26,540.73x = 36,640.31 × 20,558.97
  4. Step 4: Simplify right side
    26,540.73x = 753,286,931.29
  5. Step 5: Solve for x
    x = 753,286,931.29/26,540.73
  6. Step 6: Final answer
    x = 28,382.30

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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.