Home / 18,553.05-27,785.84-14,359.48

Finding the Fourth Proportional to 18,553.05, 27,785.84 and 14,359.48

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Solution

The fourth proportional to 18,553.05, 27,785.84 and 14,359.48 is: 21,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.05 : 27,785.84 = 14,359.48 : x
  2. Step 2: Convert to fraction form
    18,553.05/27,785.84 = 14,359.48/x
  3. Step 3: Cross multiply
    18,553.05x = 27,785.84 × 14,359.48
  4. Step 4: Simplify right side
    18,553.05x = 398,990,072.50
  5. Step 5: Solve for x
    x = 398,990,072.50/18,553.05
  6. Step 6: Final answer
    x = 21,505.36

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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.