Home / 31,998.33-47,992.64-12,286.17

Finding the Fourth Proportional to 31,998.33, 47,992.64 and 12,286.17

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Solution

The fourth proportional to 31,998.33, 47,992.64 and 12,286.17 is: 18,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,998.33 : 47,992.64 = 12,286.17 : x
  2. Step 2: Convert to fraction form
    31,998.33/47,992.64 = 12,286.17/x
  3. Step 3: Cross multiply
    31,998.33x = 47,992.64 × 12,286.17
  4. Step 4: Simplify right side
    31,998.33x = 589,645,672.36
  5. Step 5: Solve for x
    x = 589,645,672.36/31,998.33
  6. Step 6: Final answer
    x = 18,427.39

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1.5x scale

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.