Home / 28,936.40-39,932.04-16,361.20

Finding the Fourth Proportional to 28,936.40, 39,932.04 and 16,361.20

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Solution

The fourth proportional to 28,936.40, 39,932.04 and 16,361.20 is: 22,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.40 : 39,932.04 = 16,361.20 : x
  2. Step 2: Convert to fraction form
    28,936.40/39,932.04 = 16,361.20/x
  3. Step 3: Cross multiply
    28,936.40x = 39,932.04 × 16,361.20
  4. Step 4: Simplify right side
    28,936.40x = 653,336,092.85
  5. Step 5: Solve for x
    x = 653,336,092.85/28,936.40
  6. Step 6: Final answer
    x = 22,578.35

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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.