Home / 31,977.18-47,938.41-12,269.88

Finding the Fourth Proportional to 31,977.18, 47,938.41 and 12,269.88

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Solution

The fourth proportional to 31,977.18, 47,938.41 and 12,269.88 is: 18,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.18 : 47,938.41 = 12,269.88 : x
  2. Step 2: Convert to fraction form
    31,977.18/47,938.41 = 12,269.88/x
  3. Step 3: Cross multiply
    31,977.18x = 47,938.41 × 12,269.88
  4. Step 4: Simplify right side
    31,977.18x = 588,198,298.40
  5. Step 5: Solve for x
    x = 588,198,298.40/31,977.18
  6. Step 6: Final answer
    x = 18,394.32

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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.