Home / 31,993.36-47,891.64-20,876.12

Finding the Fourth Proportional to 31,993.36, 47,891.64 and 20,876.12

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Solution

The fourth proportional to 31,993.36, 47,891.64 and 20,876.12 is: 31,249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993.36 : 47,891.64 = 20,876.12 : x
  2. Step 2: Convert to fraction form
    31,993.36/47,891.64 = 20,876.12/x
  3. Step 3: Cross multiply
    31,993.36x = 47,891.64 × 20,876.12
  4. Step 4: Simplify right side
    31,993.36x = 999,791,623.64
  5. Step 5: Solve for x
    x = 999,791,623.64/31,993.36
  6. Step 6: Final answer
    x = 31,249.97

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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.