Home / 28,142.25-38,836.95-16,203.66

Finding the Fourth Proportional to 28,142.25, 38,836.95 and 16,203.66

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Solution

The fourth proportional to 28,142.25, 38,836.95 and 16,203.66 is: 22,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.25 : 38,836.95 = 16,203.66 : x
  2. Step 2: Convert to fraction form
    28,142.25/38,836.95 = 16,203.66/x
  3. Step 3: Cross multiply
    28,142.25x = 38,836.95 × 16,203.66
  4. Step 4: Simplify right side
    28,142.25x = 629,300,733.24
  5. Step 5: Solve for x
    x = 629,300,733.24/28,142.25
  6. Step 6: Final answer
    x = 22,361.42

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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.