Home / 31,418.84-47,128.14-8,045.24

Finding the Fourth Proportional to 31,418.84, 47,128.14 and 8,045.24

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Solution

The fourth proportional to 31,418.84, 47,128.14 and 8,045.24 is: 12,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.84 : 47,128.14 = 8,045.24 : x
  2. Step 2: Convert to fraction form
    31,418.84/47,128.14 = 8,045.24/x
  3. Step 3: Cross multiply
    31,418.84x = 47,128.14 × 8,045.24
  4. Step 4: Simplify right side
    31,418.84x = 379,157,197.05
  5. Step 5: Solve for x
    x = 379,157,197.05/31,418.84
  6. Step 6: Final answer
    x = 12,067.83

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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.