Home / 20,039.07-27,662.77-11,975.57

Finding the Fourth Proportional to 20,039.07, 27,662.77 and 11,975.57

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Solution

The fourth proportional to 20,039.07, 27,662.77 and 11,975.57 is: 16,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.07 : 27,662.77 = 11,975.57 : x
  2. Step 2: Convert to fraction form
    20,039.07/27,662.77 = 11,975.57/x
  3. Step 3: Cross multiply
    20,039.07x = 27,662.77 × 11,975.57
  4. Step 4: Simplify right side
    20,039.07x = 331,277,270.28
  5. Step 5: Solve for x
    x = 331,277,270.28/20,039.07
  6. Step 6: Final answer
    x = 16,531.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.