Home / 31,977.43-47,938.79-12,270.13

Finding the Fourth Proportional to 31,977.43, 47,938.79 and 12,270.13

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Solution

The fourth proportional to 31,977.43, 47,938.79 and 12,270.13 is: 18,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.43 : 47,938.79 = 12,270.13 : x
  2. Step 2: Convert to fraction form
    31,977.43/47,938.79 = 12,270.13/x
  3. Step 3: Cross multiply
    31,977.43x = 47,938.79 × 12,270.13
  4. Step 4: Simplify right side
    31,977.43x = 588,214,884.30
  5. Step 5: Solve for x
    x = 588,214,884.30/31,977.43
  6. Step 6: Final answer
    x = 18,394.69

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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.