Home / 19,726.25-27,229.91-13,349.72

Finding the Fourth Proportional to 19,726.25, 27,229.91 and 13,349.72

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Solution

The fourth proportional to 19,726.25, 27,229.91 and 13,349.72 is: 18,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.25 : 27,229.91 = 13,349.72 : x
  2. Step 2: Convert to fraction form
    19,726.25/27,229.91 = 13,349.72/x
  3. Step 3: Cross multiply
    19,726.25x = 27,229.91 × 13,349.72
  4. Step 4: Simplify right side
    19,726.25x = 363,511,675.45
  5. Step 5: Solve for x
    x = 363,511,675.45/19,726.25
  6. Step 6: Final answer
    x = 18,427.82

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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.