Home / 31,243.09-46,805.77-15,429.61

Finding the Fourth Proportional to 31,243.09, 46,805.77 and 15,429.61

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Solution

The fourth proportional to 31,243.09, 46,805.77 and 15,429.61 is: 23,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.09 : 46,805.77 = 15,429.61 : x
  2. Step 2: Convert to fraction form
    31,243.09/46,805.77 = 15,429.61/x
  3. Step 3: Cross multiply
    31,243.09x = 46,805.77 × 15,429.61
  4. Step 4: Simplify right side
    31,243.09x = 722,194,776.85
  5. Step 5: Solve for x
    x = 722,194,776.85/31,243.09
  6. Step 6: Final answer
    x = 23,115.34

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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.