Home / 28,234.44-42,382.31-21,234.42

Finding the Fourth Proportional to 28,234.44, 42,382.31 and 21,234.42

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Solution

The fourth proportional to 28,234.44, 42,382.31 and 21,234.42 is: 31,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.44 : 42,382.31 = 21,234.42 : x
  2. Step 2: Convert to fraction form
    28,234.44/42,382.31 = 21,234.42/x
  3. Step 3: Cross multiply
    28,234.44x = 42,382.31 × 21,234.42
  4. Step 4: Simplify right side
    28,234.44x = 899,963,664.94
  5. Step 5: Solve for x
    x = 899,963,664.94/28,234.44
  6. Step 6: Final answer
    x = 31,874.68

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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.