Home / 31,171.92-46,746.92-8,979.36

Finding the Fourth Proportional to 31,171.92, 46,746.92 and 8,979.36

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Solution

The fourth proportional to 31,171.92, 46,746.92 and 8,979.36 is: 13,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,171.92 : 46,746.92 = 8,979.36 : x
  2. Step 2: Convert to fraction form
    31,171.92/46,746.92 = 8,979.36/x
  3. Step 3: Cross multiply
    31,171.92x = 46,746.92 × 8,979.36
  4. Step 4: Simplify right side
    31,171.92x = 419,757,423.57
  5. Step 5: Solve for x
    x = 419,757,423.57/31,171.92
  6. Step 6: Final answer
    x = 13,465.88

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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.