Home / 25,855.91-35,683.31-15,247.61

Finding the Fourth Proportional to 25,855.91, 35,683.31 and 15,247.61

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Solution

The fourth proportional to 25,855.91, 35,683.31 and 15,247.61 is: 21,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,855.91 : 35,683.31 = 15,247.61 : x
  2. Step 2: Convert to fraction form
    25,855.91/35,683.31 = 15,247.61/x
  3. Step 3: Cross multiply
    25,855.91x = 35,683.31 × 15,247.61
  4. Step 4: Simplify right side
    25,855.91x = 544,085,118.15
  5. Step 5: Solve for x
    x = 544,085,118.15/25,855.91
  6. Step 6: Final answer
    x = 21,042.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.