Home / 19,186.20-28,609.83-16,855.74

Finding the Fourth Proportional to 19,186.20, 28,609.83 and 16,855.74

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Solution

The fourth proportional to 19,186.20, 28,609.83 and 16,855.74 is: 25,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.20 : 28,609.83 = 16,855.74 : x
  2. Step 2: Convert to fraction form
    19,186.20/28,609.83 = 16,855.74/x
  3. Step 3: Cross multiply
    19,186.20x = 28,609.83 × 16,855.74
  4. Step 4: Simplify right side
    19,186.20x = 482,239,855.92
  5. Step 5: Solve for x
    x = 482,239,855.92/19,186.20
  6. Step 6: Final answer
    x = 25,134.72

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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.