Home / 31,329.91-46,936-15,516.55

Finding the Fourth Proportional to 31,329.91, 46,936 and 15,516.55

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Solution

The fourth proportional to 31,329.91, 46,936 and 15,516.55 is: 23,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.91 : 46,936 = 15,516.55 : x
  2. Step 2: Convert to fraction form
    31,329.91/46,936 = 15,516.55/x
  3. Step 3: Cross multiply
    31,329.91x = 46,936 × 15,516.55
  4. Step 4: Simplify right side
    31,329.91x = 728,284,790.80
  5. Step 5: Solve for x
    x = 728,284,790.80/31,329.91
  6. Step 6: Final answer
    x = 23,245.67

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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.