Home / 20,591.66-28,396.69-16,994.04

Finding the Fourth Proportional to 20,591.66, 28,396.69 and 16,994.04

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Solution

The fourth proportional to 20,591.66, 28,396.69 and 16,994.04 is: 23,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.66 : 28,396.69 = 16,994.04 : x
  2. Step 2: Convert to fraction form
    20,591.66/28,396.69 = 16,994.04/x
  3. Step 3: Cross multiply
    20,591.66x = 28,396.69 × 16,994.04
  4. Step 4: Simplify right side
    20,591.66x = 482,574,485.73
  5. Step 5: Solve for x
    x = 482,574,485.73/20,591.66
  6. Step 6: Final answer
    x = 23,435.43

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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.