Home / 31,512.92-47,243.86-11,788.61

Finding the Fourth Proportional to 31,512.92, 47,243.86 and 11,788.61

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Solution

The fourth proportional to 31,512.92, 47,243.86 and 11,788.61 is: 17,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.92 : 47,243.86 = 11,788.61 : x
  2. Step 2: Convert to fraction form
    31,512.92/47,243.86 = 11,788.61/x
  3. Step 3: Cross multiply
    31,512.92x = 47,243.86 × 11,788.61
  4. Step 4: Simplify right side
    31,512.92x = 556,939,174.74
  5. Step 5: Solve for x
    x = 556,939,174.74/31,512.92
  6. Step 6: Final answer
    x = 17,673.36

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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.