Home / 19,991.53-27,588.31-11,039.05

Finding the Fourth Proportional to 19,991.53, 27,588.31 and 11,039.05

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Solution

The fourth proportional to 19,991.53, 27,588.31 and 11,039.05 is: 15,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.53 : 27,588.31 = 11,039.05 : x
  2. Step 2: Convert to fraction form
    19,991.53/27,588.31 = 11,039.05/x
  3. Step 3: Cross multiply
    19,991.53x = 27,588.31 × 11,039.05
  4. Step 4: Simplify right side
    19,991.53x = 304,548,636.94
  5. Step 5: Solve for x
    x = 304,548,636.94/19,991.53
  6. Step 6: Final answer
    x = 15,233.89

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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.