Home / 31,698.72-47,553.48-15,911.28

Finding the Fourth Proportional to 31,698.72, 47,553.48 and 15,911.28

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Solution

The fourth proportional to 31,698.72, 47,553.48 and 15,911.28 is: 23,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,698.72 : 47,553.48 = 15,911.28 : x
  2. Step 2: Convert to fraction form
    31,698.72/47,553.48 = 15,911.28/x
  3. Step 3: Cross multiply
    31,698.72x = 47,553.48 × 15,911.28
  4. Step 4: Simplify right side
    31,698.72x = 756,636,735.25
  5. Step 5: Solve for x
    x = 756,636,735.25/31,698.72
  6. Step 6: Final answer
    x = 23,869.63

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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.