Home / 31,351.92-47,012.44-15,538.80

Finding the Fourth Proportional to 31,351.92, 47,012.44 and 15,538.80

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Solution

The fourth proportional to 31,351.92, 47,012.44 and 15,538.80 is: 23,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.92 : 47,012.44 = 15,538.80 : x
  2. Step 2: Convert to fraction form
    31,351.92/47,012.44 = 15,538.80/x
  3. Step 3: Cross multiply
    31,351.92x = 47,012.44 × 15,538.80
  4. Step 4: Simplify right side
    31,351.92x = 730,516,902.67
  5. Step 5: Solve for x
    x = 730,516,902.67/31,351.92
  6. Step 6: Final answer
    x = 23,300.55

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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.