Home / 26,518.31-39,724.19-12,266.81

Finding the Fourth Proportional to 26,518.31, 39,724.19 and 12,266.81

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Solution

The fourth proportional to 26,518.31, 39,724.19 and 12,266.81 is: 18,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,518.31 : 39,724.19 = 12,266.81 : x
  2. Step 2: Convert to fraction form
    26,518.31/39,724.19 = 12,266.81/x
  3. Step 3: Cross multiply
    26,518.31x = 39,724.19 × 12,266.81
  4. Step 4: Simplify right side
    26,518.31x = 487,289,029.80
  5. Step 5: Solve for x
    x = 487,289,029.80/26,518.31
  6. Step 6: Final answer
    x = 18,375.57

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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.