Home / 20,553.26-30,855.30-13,511.24

Finding the Fourth Proportional to 20,553.26, 30,855.30 and 13,511.24

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Solution

The fourth proportional to 20,553.26, 30,855.30 and 13,511.24 is: 20,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.26 : 30,855.30 = 13,511.24 : x
  2. Step 2: Convert to fraction form
    20,553.26/30,855.30 = 13,511.24/x
  3. Step 3: Cross multiply
    20,553.26x = 30,855.30 × 13,511.24
  4. Step 4: Simplify right side
    20,553.26x = 416,893,363.57
  5. Step 5: Solve for x
    x = 416,893,363.57/20,553.26
  6. Step 6: Final answer
    x = 20,283.56

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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.