Home / 31,087.20-46,629.96-7,713.36

Finding the Fourth Proportional to 31,087.20, 46,629.96 and 7,713.36

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Solution

The fourth proportional to 31,087.20, 46,629.96 and 7,713.36 is: 11,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,087.20 : 46,629.96 = 7,713.36 : x
  2. Step 2: Convert to fraction form
    31,087.20/46,629.96 = 7,713.36/x
  3. Step 3: Cross multiply
    31,087.20x = 46,629.96 × 7,713.36
  4. Step 4: Simplify right side
    31,087.20x = 359,673,668.27
  5. Step 5: Solve for x
    x = 359,673,668.27/31,087.20
  6. Step 6: Final answer
    x = 11,569.83

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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.