Home / 19,806.55-27,333.78-11,310.05

Finding the Fourth Proportional to 19,806.55, 27,333.78 and 11,310.05

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Solution

The fourth proportional to 19,806.55, 27,333.78 and 11,310.05 is: 15,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.55 : 27,333.78 = 11,310.05 : x
  2. Step 2: Convert to fraction form
    19,806.55/27,333.78 = 11,310.05/x
  3. Step 3: Cross multiply
    19,806.55x = 27,333.78 × 11,310.05
  4. Step 4: Simplify right side
    19,806.55x = 309,146,418.49
  5. Step 5: Solve for x
    x = 309,146,418.49/19,806.55
  6. Step 6: Final answer
    x = 15,608.30

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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.