Home / 31,121.70-46,668.51-8,930.04

Finding the Fourth Proportional to 31,121.70, 46,668.51 and 8,930.04

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Solution

The fourth proportional to 31,121.70, 46,668.51 and 8,930.04 is: 13,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.70 : 46,668.51 = 8,930.04 : x
  2. Step 2: Convert to fraction form
    31,121.70/46,668.51 = 8,930.04/x
  3. Step 3: Cross multiply
    31,121.70x = 46,668.51 × 8,930.04
  4. Step 4: Simplify right side
    31,121.70x = 416,751,661.04
  5. Step 5: Solve for x
    x = 416,751,661.04/31,121.70
  6. Step 6: Final answer
    x = 13,391.03

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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.