Home / 19,240.72-28,865.41-6,761.61

Finding the Fourth Proportional to 19,240.72, 28,865.41 and 6,761.61

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Solution

The fourth proportional to 19,240.72, 28,865.41 and 6,761.61 is: 10,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.72 : 28,865.41 = 6,761.61 : x
  2. Step 2: Convert to fraction form
    19,240.72/28,865.41 = 6,761.61/x
  3. Step 3: Cross multiply
    19,240.72x = 28,865.41 × 6,761.61
  4. Step 4: Simplify right side
    19,240.72x = 195,176,644.91
  5. Step 5: Solve for x
    x = 195,176,644.91/19,240.72
  6. Step 6: Final answer
    x = 10,143.94

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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.