Home / 31,861.90-47,793.66-17,814.07

Finding the Fourth Proportional to 31,861.90, 47,793.66 and 17,814.07

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Solution

The fourth proportional to 31,861.90, 47,793.66 and 17,814.07 is: 26,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.90 : 47,793.66 = 17,814.07 : x
  2. Step 2: Convert to fraction form
    31,861.90/47,793.66 = 17,814.07/x
  3. Step 3: Cross multiply
    31,861.90x = 47,793.66 × 17,814.07
  4. Step 4: Simplify right side
    31,861.90x = 851,399,604.80
  5. Step 5: Solve for x
    x = 851,399,604.80/31,861.90
  6. Step 6: Final answer
    x = 26,721.56

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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.