Home / 31,977.55-47,938.97-12,270.25

Finding the Fourth Proportional to 31,977.55, 47,938.97 and 12,270.25

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Solution

The fourth proportional to 31,977.55, 47,938.97 and 12,270.25 is: 18,394.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.55 : 47,938.97 = 12,270.25 : x
  2. Step 2: Convert to fraction form
    31,977.55/47,938.97 = 12,270.25/x
  3. Step 3: Cross multiply
    31,977.55x = 47,938.97 × 12,270.25
  4. Step 4: Simplify right side
    31,977.55x = 588,223,146.64
  5. Step 5: Solve for x
    x = 588,223,146.64/31,977.55
  6. Step 6: Final answer
    x = 18,394.88

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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.