Home / 31,914.16-47,891.20-12,194.40

Finding the Fourth Proportional to 31,914.16, 47,891.20 and 12,194.40

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Solution

The fourth proportional to 31,914.16, 47,891.20 and 12,194.40 is: 18,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.16 : 47,891.20 = 12,194.40 : x
  2. Step 2: Convert to fraction form
    31,914.16/47,891.20 = 12,194.40/x
  3. Step 3: Cross multiply
    31,914.16x = 47,891.20 × 12,194.40
  4. Step 4: Simplify right side
    31,914.16x = 584,004,449.28
  5. Step 5: Solve for x
    x = 584,004,449.28/31,914.16
  6. Step 6: Final answer
    x = 18,299.23

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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.