Home / 31,869.78-47,804.62-15,179.19

Finding the Fourth Proportional to 31,869.78, 47,804.62 and 15,179.19

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Solution

The fourth proportional to 31,869.78, 47,804.62 and 15,179.19 is: 22,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.78 : 47,804.62 = 15,179.19 : x
  2. Step 2: Convert to fraction form
    31,869.78/47,804.62 = 15,179.19/x
  3. Step 3: Cross multiply
    31,869.78x = 47,804.62 × 15,179.19
  4. Step 4: Simplify right side
    31,869.78x = 725,635,371.91
  5. Step 5: Solve for x
    x = 725,635,371.91/31,869.78
  6. Step 6: Final answer
    x = 22,768.76

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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.