Home / 18,826.88-28,242.78-5,680.58

Finding the Fourth Proportional to 18,826.88, 28,242.78 and 5,680.58

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Solution

The fourth proportional to 18,826.88, 28,242.78 and 5,680.58 is: 8,521.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.88 : 28,242.78 = 5,680.58 : x
  2. Step 2: Convert to fraction form
    18,826.88/28,242.78 = 5,680.58/x
  3. Step 3: Cross multiply
    18,826.88x = 28,242.78 × 5,680.58
  4. Step 4: Simplify right side
    18,826.88x = 160,435,371.21
  5. Step 5: Solve for x
    x = 160,435,371.21/18,826.88
  6. Step 6: Final answer
    x = 8,521.61

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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.