Home / 31,025.92-42,815.63-16,879.07

Finding the Fourth Proportional to 31,025.92, 42,815.63 and 16,879.07

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Solution

The fourth proportional to 31,025.92, 42,815.63 and 16,879.07 is: 23,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,025.92 : 42,815.63 = 16,879.07 : x
  2. Step 2: Convert to fraction form
    31,025.92/42,815.63 = 16,879.07/x
  3. Step 3: Cross multiply
    31,025.92x = 42,815.63 × 16,879.07
  4. Step 4: Simplify right side
    31,025.92x = 722,687,843.98
  5. Step 5: Solve for x
    x = 722,687,843.98/31,025.92
  6. Step 6: Final answer
    x = 23,293.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.