Home / 31,618.63-47,436.15-16,815.38

Finding the Fourth Proportional to 31,618.63, 47,436.15 and 16,815.38

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Solution

The fourth proportional to 31,618.63, 47,436.15 and 16,815.38 is: 25,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,618.63 : 47,436.15 = 16,815.38 : x
  2. Step 2: Convert to fraction form
    31,618.63/47,436.15 = 16,815.38/x
  3. Step 3: Cross multiply
    31,618.63x = 47,436.15 × 16,815.38
  4. Step 4: Simplify right side
    31,618.63x = 797,656,619.28
  5. Step 5: Solve for x
    x = 797,656,619.28/31,618.63
  6. Step 6: Final answer
    x = 25,227.42

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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.