Home / 28,142.80-38,837.05-16,208.44

Finding the Fourth Proportional to 28,142.80, 38,837.05 and 16,208.44

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Solution

The fourth proportional to 28,142.80, 38,837.05 and 16,208.44 is: 22,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.80 : 38,837.05 = 16,208.44 : x
  2. Step 2: Convert to fraction form
    28,142.80/38,837.05 = 16,208.44/x
  3. Step 3: Cross multiply
    28,142.80x = 38,837.05 × 16,208.44
  4. Step 4: Simplify right side
    28,142.80x = 629,487,857.09
  5. Step 5: Solve for x
    x = 629,487,857.09/28,142.80
  6. Step 6: Final answer
    x = 22,367.64

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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.