Home / 26,581.44-39,870.72-8,112

Finding the Fourth Proportional to 26,581.44, 39,870.72 and 8,112

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Solution

The fourth proportional to 26,581.44, 39,870.72 and 8,112 is: 12,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,581.44 : 39,870.72 = 8,112 : x
  2. Step 2: Convert to fraction form
    26,581.44/39,870.72 = 8,112/x
  3. Step 3: Cross multiply
    26,581.44x = 39,870.72 × 8,112
  4. Step 4: Simplify right side
    26,581.44x = 323,431,280.64
  5. Step 5: Solve for x
    x = 323,431,280.64/26,581.44
  6. Step 6: Final answer
    x = 12,167.56

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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.