Home / 20,377.15-30,576.76-8,531.97

Finding the Fourth Proportional to 20,377.15, 30,576.76 and 8,531.97

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Solution

The fourth proportional to 20,377.15, 30,576.76 and 8,531.97 is: 12,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.15 : 30,576.76 = 8,531.97 : x
  2. Step 2: Convert to fraction form
    20,377.15/30,576.76 = 8,531.97/x
  3. Step 3: Cross multiply
    20,377.15x = 30,576.76 × 8,531.97
  4. Step 4: Simplify right side
    20,377.15x = 260,879,977.69
  5. Step 5: Solve for x
    x = 260,879,977.69/20,377.15
  6. Step 6: Final answer
    x = 12,802.58

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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.