Home / 31,310.38-43,208.45-16,970.23

Finding the Fourth Proportional to 31,310.38, 43,208.45 and 16,970.23

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Solution

The fourth proportional to 31,310.38, 43,208.45 and 16,970.23 is: 23,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.38 : 43,208.45 = 16,970.23 : x
  2. Step 2: Convert to fraction form
    31,310.38/43,208.45 = 16,970.23/x
  3. Step 3: Cross multiply
    31,310.38x = 43,208.45 × 16,970.23
  4. Step 4: Simplify right side
    31,310.38x = 733,257,334.44
  5. Step 5: Solve for x
    x = 733,257,334.44/31,310.38
  6. Step 6: Final answer
    x = 23,418.99

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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.