Home / 18,951.20-28,286.44-17,783.84

Finding the Fourth Proportional to 18,951.20, 28,286.44 and 17,783.84

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Solution

The fourth proportional to 18,951.20, 28,286.44 and 17,783.84 is: 26,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.20 : 28,286.44 = 17,783.84 : x
  2. Step 2: Convert to fraction form
    18,951.20/28,286.44 = 17,783.84/x
  3. Step 3: Cross multiply
    18,951.20x = 28,286.44 × 17,783.84
  4. Step 4: Simplify right side
    18,951.20x = 503,041,523.13
  5. Step 5: Solve for x
    x = 503,041,523.13/18,951.20
  6. Step 6: Final answer
    x = 26,544.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.