Home / 26,439.89-39,659.90-6,718.41

Finding the Fourth Proportional to 26,439.89, 39,659.90 and 6,718.41

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Solution

The fourth proportional to 26,439.89, 39,659.90 and 6,718.41 is: 10,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.89 : 39,659.90 = 6,718.41 : x
  2. Step 2: Convert to fraction form
    26,439.89/39,659.90 = 6,718.41/x
  3. Step 3: Cross multiply
    26,439.89x = 39,659.90 × 6,718.41
  4. Step 4: Simplify right side
    26,439.89x = 266,451,435.17
  5. Step 5: Solve for x
    x = 266,451,435.17/26,439.89
  6. Step 6: Final answer
    x = 10,077.63

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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.