Home / 19,039.13-28,571.66-11,447.00

Finding the Fourth Proportional to 19,039.13, 28,571.66 and 11,447.00

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Solution

The fourth proportional to 19,039.13, 28,571.66 and 11,447.00 is: 17,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.13 : 28,571.66 = 11,447.00 : x
  2. Step 2: Convert to fraction form
    19,039.13/28,571.66 = 11,447.00/x
  3. Step 3: Cross multiply
    19,039.13x = 28,571.66 × 11,447.00
  4. Step 4: Simplify right side
    19,039.13x = 327,059,591.93
  5. Step 5: Solve for x
    x = 327,059,591.93/19,039.13
  6. Step 6: Final answer
    x = 17,178.29

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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.