Home / 31,979.10-47,964.33-8,606.94

Finding the Fourth Proportional to 31,979.10, 47,964.33 and 8,606.94

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Solution

The fourth proportional to 31,979.10, 47,964.33 and 8,606.94 is: 12,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.10 : 47,964.33 = 8,606.94 : x
  2. Step 2: Convert to fraction form
    31,979.10/47,964.33 = 8,606.94/x
  3. Step 3: Cross multiply
    31,979.10x = 47,964.33 × 8,606.94
  4. Step 4: Simplify right side
    31,979.10x = 412,826,110.45
  5. Step 5: Solve for x
    x = 412,826,110.45/31,979.10
  6. Step 6: Final answer
    x = 12,909.25

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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.