Home / 19,939.40-27,520.34-11,447.26

Finding the Fourth Proportional to 19,939.40, 27,520.34 and 11,447.26

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Solution

The fourth proportional to 19,939.40, 27,520.34 and 11,447.26 is: 15,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.40 : 27,520.34 = 11,447.26 : x
  2. Step 2: Convert to fraction form
    19,939.40/27,520.34 = 11,447.26/x
  3. Step 3: Cross multiply
    19,939.40x = 27,520.34 × 11,447.26
  4. Step 4: Simplify right side
    19,939.40x = 315,032,487.27
  5. Step 5: Solve for x
    x = 315,032,487.27/19,939.40
  6. Step 6: Final answer
    x = 15,799.50

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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.