Home / 28,160.12-42,234.06-8,433.38

Finding the Fourth Proportional to 28,160.12, 42,234.06 and 8,433.38

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Solution

The fourth proportional to 28,160.12, 42,234.06 and 8,433.38 is: 12,648.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.12 : 42,234.06 = 8,433.38 : x
  2. Step 2: Convert to fraction form
    28,160.12/42,234.06 = 8,433.38/x
  3. Step 3: Cross multiply
    28,160.12x = 42,234.06 × 8,433.38
  4. Step 4: Simplify right side
    28,160.12x = 356,175,876.92
  5. Step 5: Solve for x
    x = 356,175,876.92/28,160.12
  6. Step 6: Final answer
    x = 12,648.24

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1.5x scale

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.