Home / 31,205.57-43,063.69-16,865.36

Finding the Fourth Proportional to 31,205.57, 43,063.69 and 16,865.36

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Solution

The fourth proportional to 31,205.57, 43,063.69 and 16,865.36 is: 23,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.57 : 43,063.69 = 16,865.36 : x
  2. Step 2: Convert to fraction form
    31,205.57/43,063.69 = 16,865.36/x
  3. Step 3: Cross multiply
    31,205.57x = 43,063.69 × 16,865.36
  4. Step 4: Simplify right side
    31,205.57x = 726,284,700.27
  5. Step 5: Solve for x
    x = 726,284,700.27/31,205.57
  6. Step 6: Final answer
    x = 23,274.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.