Home / 19,859.55-27,406.19-11,906.39

Finding the Fourth Proportional to 19,859.55, 27,406.19 and 11,906.39

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Solution

The fourth proportional to 19,859.55, 27,406.19 and 11,906.39 is: 16,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.55 : 27,406.19 = 11,906.39 : x
  2. Step 2: Convert to fraction form
    19,859.55/27,406.19 = 11,906.39/x
  3. Step 3: Cross multiply
    19,859.55x = 27,406.19 × 11,906.39
  4. Step 4: Simplify right side
    19,859.55x = 326,308,801.12
  5. Step 5: Solve for x
    x = 326,308,801.12/19,859.55
  6. Step 6: Final answer
    x = 16,430.82

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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.