Home / 27,986.80-41,975.40-10,447.60

Finding the Fourth Proportional to 27,986.80, 41,975.40 and 10,447.60

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Solution

The fourth proportional to 27,986.80, 41,975.40 and 10,447.60 is: 15,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.80 : 41,975.40 = 10,447.60 : x
  2. Step 2: Convert to fraction form
    27,986.80/41,975.40 = 10,447.60/x
  3. Step 3: Cross multiply
    27,986.80x = 41,975.40 × 10,447.60
  4. Step 4: Simplify right side
    27,986.80x = 438,542,189.04
  5. Step 5: Solve for x
    x = 438,542,189.04/27,986.80
  6. Step 6: Final answer
    x = 15,669.61

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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.