Home / 20,211.24-27,689.52-19,453.68

Finding the Fourth Proportional to 20,211.24, 27,689.52 and 19,453.68

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Solution

The fourth proportional to 20,211.24, 27,689.52 and 19,453.68 is: 26,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.24 : 27,689.52 = 19,453.68 : x
  2. Step 2: Convert to fraction form
    20,211.24/27,689.52 = 19,453.68/x
  3. Step 3: Cross multiply
    20,211.24x = 27,689.52 × 19,453.68
  4. Step 4: Simplify right side
    20,211.24x = 538,662,992.21
  5. Step 5: Solve for x
    x = 538,662,992.21/20,211.24
  6. Step 6: Final answer
    x = 26,651.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.