Home / 31,835.92-43,917.12-19,078.96

Finding the Fourth Proportional to 31,835.92, 43,917.12 and 19,078.96

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Solution

The fourth proportional to 31,835.92, 43,917.12 and 19,078.96 is: 26,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835.92 : 43,917.12 = 19,078.96 : x
  2. Step 2: Convert to fraction form
    31,835.92/43,917.12 = 19,078.96/x
  3. Step 3: Cross multiply
    31,835.92x = 43,917.12 × 19,078.96
  4. Step 4: Simplify right side
    31,835.92x = 837,892,975.80
  5. Step 5: Solve for x
    x = 837,892,975.80/31,835.92
  6. Step 6: Final answer
    x = 26,319.11

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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.