Home / 31,351.15-47,035.43-12,626.80

Finding the Fourth Proportional to 31,351.15, 47,035.43 and 12,626.80

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Solution

The fourth proportional to 31,351.15, 47,035.43 and 12,626.80 is: 18,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.15 : 47,035.43 = 12,626.80 : x
  2. Step 2: Convert to fraction form
    31,351.15/47,035.43 = 12,626.80/x
  3. Step 3: Cross multiply
    31,351.15x = 47,035.43 × 12,626.80
  4. Step 4: Simplify right side
    31,351.15x = 593,907,169.75
  5. Step 5: Solve for x
    x = 593,907,169.75/31,351.15
  6. Step 6: Final answer
    x = 18,943.71

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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.