Home / 20,453.97-28,340.07-20,011.05

Finding the Fourth Proportional to 20,453.97, 28,340.07 and 20,011.05

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Solution

The fourth proportional to 20,453.97, 28,340.07 and 20,011.05 is: 27,726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.97 : 28,340.07 = 20,011.05 : x
  2. Step 2: Convert to fraction form
    20,453.97/28,340.07 = 20,011.05/x
  3. Step 3: Cross multiply
    20,453.97x = 28,340.07 × 20,011.05
  4. Step 4: Simplify right side
    20,453.97x = 567,114,557.77
  5. Step 5: Solve for x
    x = 567,114,557.77/20,453.97
  6. Step 6: Final answer
    x = 27,726.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.