Home / 18,571.12-27,893.87-11,089.31

Finding the Fourth Proportional to 18,571.12, 27,893.87 and 11,089.31

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Solution

The fourth proportional to 18,571.12, 27,893.87 and 11,089.31 is: 16,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.12 : 27,893.87 = 11,089.31 : x
  2. Step 2: Convert to fraction form
    18,571.12/27,893.87 = 11,089.31/x
  3. Step 3: Cross multiply
    18,571.12x = 27,893.87 × 11,089.31
  4. Step 4: Simplify right side
    18,571.12x = 309,323,618.20
  5. Step 5: Solve for x
    x = 309,323,618.20/18,571.12
  6. Step 6: Final answer
    x = 16,656.16

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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.