Home / 26,664.32-39,989.52-7,939.28

Finding the Fourth Proportional to 26,664.32, 39,989.52 and 7,939.28

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Solution

The fourth proportional to 26,664.32, 39,989.52 and 7,939.28 is: 11,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,664.32 : 39,989.52 = 7,939.28 : x
  2. Step 2: Convert to fraction form
    26,664.32/39,989.52 = 7,939.28/x
  3. Step 3: Cross multiply
    26,664.32x = 39,989.52 × 7,939.28
  4. Step 4: Simplify right side
    26,664.32x = 317,487,996.35
  5. Step 5: Solve for x
    x = 317,487,996.35/26,664.32
  6. Step 6: Final answer
    x = 11,906.85

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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.