Home / 31,728.75-47,593.46-13,003.98

Finding the Fourth Proportional to 31,728.75, 47,593.46 and 13,003.98

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Solution

The fourth proportional to 31,728.75, 47,593.46 and 13,003.98 is: 19,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.75 : 47,593.46 = 13,003.98 : x
  2. Step 2: Convert to fraction form
    31,728.75/47,593.46 = 13,003.98/x
  3. Step 3: Cross multiply
    31,728.75x = 47,593.46 × 13,003.98
  4. Step 4: Simplify right side
    31,728.75x = 618,904,336.95
  5. Step 5: Solve for x
    x = 618,904,336.95/31,728.75
  6. Step 6: Final answer
    x = 19,506.11

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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.