Home / 28,223.78-42,335.19-6,876.56

Finding the Fourth Proportional to 28,223.78, 42,335.19 and 6,876.56

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Solution

The fourth proportional to 28,223.78, 42,335.19 and 6,876.56 is: 10,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.78 : 42,335.19 = 6,876.56 : x
  2. Step 2: Convert to fraction form
    28,223.78/42,335.19 = 6,876.56/x
  3. Step 3: Cross multiply
    28,223.78x = 42,335.19 × 6,876.56
  4. Step 4: Simplify right side
    28,223.78x = 291,120,579.98
  5. Step 5: Solve for x
    x = 291,120,579.98/28,223.78
  6. Step 6: Final answer
    x = 10,314.73

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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.