Home / 31,979.93-47,942.54-12,272.63

Finding the Fourth Proportional to 31,979.93, 47,942.54 and 12,272.63

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Solution

The fourth proportional to 31,979.93, 47,942.54 and 12,272.63 is: 18,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.93 : 47,942.54 = 12,272.63 : x
  2. Step 2: Convert to fraction form
    31,979.93/47,942.54 = 12,272.63/x
  3. Step 3: Cross multiply
    31,979.93x = 47,942.54 × 12,272.63
  4. Step 4: Simplify right side
    31,979.93x = 588,380,753.60
  5. Step 5: Solve for x
    x = 588,380,753.60/31,979.93
  6. Step 6: Final answer
    x = 18,398.44

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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.