Home / 31,731.45-47,597.23-8,039

Finding the Fourth Proportional to 31,731.45, 47,597.23 and 8,039

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Solution

The fourth proportional to 31,731.45, 47,597.23 and 8,039 is: 12,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.45 : 47,597.23 = 8,039 : x
  2. Step 2: Convert to fraction form
    31,731.45/47,597.23 = 8,039/x
  3. Step 3: Cross multiply
    31,731.45x = 47,597.23 × 8,039
  4. Step 4: Simplify right side
    31,731.45x = 382,634,131.97
  5. Step 5: Solve for x
    x = 382,634,131.97/31,731.45
  6. Step 6: Final answer
    x = 12,058.51

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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.