Home / 31,977.19-47,958.49-8,605.45

Finding the Fourth Proportional to 31,977.19, 47,958.49 and 8,605.45

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Solution

The fourth proportional to 31,977.19, 47,958.49 and 8,605.45 is: 12,906.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.19 : 47,958.49 = 8,605.45 : x
  2. Step 2: Convert to fraction form
    31,977.19/47,958.49 = 8,605.45/x
  3. Step 3: Cross multiply
    31,977.19x = 47,958.49 × 8,605.45
  4. Step 4: Simplify right side
    31,977.19x = 412,704,387.77
  5. Step 5: Solve for x
    x = 412,704,387.77/31,977.19
  6. Step 6: Final answer
    x = 12,906.21

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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.