Home / 19,830.75-27,366.44-11,447.25

Finding the Fourth Proportional to 19,830.75, 27,366.44 and 11,447.25

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Solution

The fourth proportional to 19,830.75, 27,366.44 and 11,447.25 is: 15,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.75 : 27,366.44 = 11,447.25 : x
  2. Step 2: Convert to fraction form
    19,830.75/27,366.44 = 11,447.25/x
  3. Step 3: Cross multiply
    19,830.75x = 27,366.44 × 11,447.25
  4. Step 4: Simplify right side
    19,830.75x = 313,270,423.05
  5. Step 5: Solve for x
    x = 313,270,423.05/19,830.75
  6. Step 6: Final answer
    x = 15,797.21

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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.