Home / 19,400.91-29,138.27-12,056.69

Finding the Fourth Proportional to 19,400.91, 29,138.27 and 12,056.69

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Solution

The fourth proportional to 19,400.91, 29,138.27 and 12,056.69 is: 18,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.91 : 29,138.27 = 12,056.69 : x
  2. Step 2: Convert to fraction form
    19,400.91/29,138.27 = 12,056.69/x
  3. Step 3: Cross multiply
    19,400.91x = 29,138.27 × 12,056.69
  4. Step 4: Simplify right side
    19,400.91x = 351,310,882.55
  5. Step 5: Solve for x
    x = 351,310,882.55/19,400.91
  6. Step 6: Final answer
    x = 18,107.96

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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.