Home / 20,211.14-27,689.39-19,453.58

Finding the Fourth Proportional to 20,211.14, 27,689.39 and 19,453.58

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Solution

The fourth proportional to 20,211.14, 27,689.39 and 19,453.58 is: 26,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.14 : 27,689.39 = 19,453.58 : x
  2. Step 2: Convert to fraction form
    20,211.14/27,689.39 = 19,453.58/x
  3. Step 3: Cross multiply
    20,211.14x = 27,689.39 × 19,453.58
  4. Step 4: Simplify right side
    20,211.14x = 538,657,933.29
  5. Step 5: Solve for x
    x = 538,657,933.29/20,211.14
  6. Step 6: Final answer
    x = 26,651.54

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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.