Home / 31,364.78-47,046.89-13,834.62

Finding the Fourth Proportional to 31,364.78, 47,046.89 and 13,834.62

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Solution

The fourth proportional to 31,364.78, 47,046.89 and 13,834.62 is: 20,751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.78 : 47,046.89 = 13,834.62 : x
  2. Step 2: Convert to fraction form
    31,364.78/47,046.89 = 13,834.62/x
  3. Step 3: Cross multiply
    31,364.78x = 47,046.89 × 13,834.62
  4. Step 4: Simplify right side
    31,364.78x = 650,875,879.92
  5. Step 5: Solve for x
    x = 650,875,879.92/31,364.78
  6. Step 6: Final answer
    x = 20,751.81

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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.