Home / 26,620.85-39,940.70-11,828.43

Finding the Fourth Proportional to 26,620.85, 39,940.70 and 11,828.43

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Solution

The fourth proportional to 26,620.85, 39,940.70 and 11,828.43 is: 17,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.85 : 39,940.70 = 11,828.43 : x
  2. Step 2: Convert to fraction form
    26,620.85/39,940.70 = 11,828.43/x
  3. Step 3: Cross multiply
    26,620.85x = 39,940.70 × 11,828.43
  4. Step 4: Simplify right side
    26,620.85x = 472,435,714.96
  5. Step 5: Solve for x
    x = 472,435,714.96/26,620.85
  6. Step 6: Final answer
    x = 17,746.83

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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.