Home / 19,105.56-26,392.25-18,171.38

Finding the Fourth Proportional to 19,105.56, 26,392.25 and 18,171.38

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Solution

The fourth proportional to 19,105.56, 26,392.25 and 18,171.38 is: 25,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.56 : 26,392.25 = 18,171.38 : x
  2. Step 2: Convert to fraction form
    19,105.56/26,392.25 = 18,171.38/x
  3. Step 3: Cross multiply
    19,105.56x = 26,392.25 × 18,171.38
  4. Step 4: Simplify right side
    19,105.56x = 479,583,715.21
  5. Step 5: Solve for x
    x = 479,583,715.21/19,105.56
  6. Step 6: Final answer
    x = 25,101.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.