Home / 26,912.78-40,313.58-15,785.96

Finding the Fourth Proportional to 26,912.78, 40,313.58 and 15,785.96

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Solution

The fourth proportional to 26,912.78, 40,313.58 and 15,785.96 is: 23,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.78 : 40,313.58 = 15,785.96 : x
  2. Step 2: Convert to fraction form
    26,912.78/40,313.58 = 15,785.96/x
  3. Step 3: Cross multiply
    26,912.78x = 40,313.58 × 15,785.96
  4. Step 4: Simplify right side
    26,912.78x = 636,388,561.34
  5. Step 5: Solve for x
    x = 636,388,561.34/26,912.78
  6. Step 6: Final answer
    x = 23,646.33

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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.