Home / 26,501.78-39,770.87-10,919.41

Finding the Fourth Proportional to 26,501.78, 39,770.87 and 10,919.41

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Solution

The fourth proportional to 26,501.78, 39,770.87 and 10,919.41 is: 16,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,501.78 : 39,770.87 = 10,919.41 : x
  2. Step 2: Convert to fraction form
    26,501.78/39,770.87 = 10,919.41/x
  3. Step 3: Cross multiply
    26,501.78x = 39,770.87 × 10,919.41
  4. Step 4: Simplify right side
    26,501.78x = 434,274,281.56
  5. Step 5: Solve for x
    x = 434,274,281.56/26,501.78
  6. Step 6: Final answer
    x = 16,386.61

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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.