Home / 19,163.10-28,679.85-16,830.30

Finding the Fourth Proportional to 19,163.10, 28,679.85 and 16,830.30

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Solution

The fourth proportional to 19,163.10, 28,679.85 and 16,830.30 is: 25,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.10 : 28,679.85 = 16,830.30 : x
  2. Step 2: Convert to fraction form
    19,163.10/28,679.85 = 16,830.30/x
  3. Step 3: Cross multiply
    19,163.10x = 28,679.85 × 16,830.30
  4. Step 4: Simplify right side
    19,163.10x = 482,690,479.46
  5. Step 5: Solve for x
    x = 482,690,479.46/19,163.10
  6. Step 6: Final answer
    x = 25,188.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.