Home / 31,917.49-47,879.51-12,212.62

Finding the Fourth Proportional to 31,917.49, 47,879.51 and 12,212.62

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Solution

The fourth proportional to 31,917.49, 47,879.51 and 12,212.62 is: 18,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.49 : 47,879.51 = 12,212.62 : x
  2. Step 2: Convert to fraction form
    31,917.49/47,879.51 = 12,212.62/x
  3. Step 3: Cross multiply
    31,917.49x = 47,879.51 × 12,212.62
  4. Step 4: Simplify right side
    31,917.49x = 584,734,261.42
  5. Step 5: Solve for x
    x = 584,734,261.42/31,917.49
  6. Step 6: Final answer
    x = 18,320.18

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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.