Home / 19,217.10-28,634.60-17,120.99

Finding the Fourth Proportional to 19,217.10, 28,634.60 and 17,120.99

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Solution

The fourth proportional to 19,217.10, 28,634.60 and 17,120.99 is: 25,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.10 : 28,634.60 = 17,120.99 : x
  2. Step 2: Convert to fraction form
    19,217.10/28,634.60 = 17,120.99/x
  3. Step 3: Cross multiply
    19,217.10x = 28,634.60 × 17,120.99
  4. Step 4: Simplify right side
    19,217.10x = 490,252,614.65
  5. Step 5: Solve for x
    x = 490,252,614.65/19,217.10
  6. Step 6: Final answer
    x = 25,511.28

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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.