Home / 20,144.88-27,816.75-16,805.22

Finding the Fourth Proportional to 20,144.88, 27,816.75 and 16,805.22

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Solution

The fourth proportional to 20,144.88, 27,816.75 and 16,805.22 is: 23,205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.88 : 27,816.75 = 16,805.22 : x
  2. Step 2: Convert to fraction form
    20,144.88/27,816.75 = 16,805.22/x
  3. Step 3: Cross multiply
    20,144.88x = 27,816.75 × 16,805.22
  4. Step 4: Simplify right side
    20,144.88x = 467,466,603.44
  5. Step 5: Solve for x
    x = 467,466,603.44/20,144.88
  6. Step 6: Final answer
    x = 23,205.23

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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.