Home / 19,991.86-27,588.99-11,039.35

Finding the Fourth Proportional to 19,991.86, 27,588.99 and 11,039.35

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Solution

The fourth proportional to 19,991.86, 27,588.99 and 11,039.35 is: 15,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.86 : 27,588.99 = 11,039.35 : x
  2. Step 2: Convert to fraction form
    19,991.86/27,588.99 = 11,039.35/x
  3. Step 3: Cross multiply
    19,991.86x = 27,588.99 × 11,039.35
  4. Step 4: Simplify right side
    19,991.86x = 304,564,516.76
  5. Step 5: Solve for x
    x = 304,564,516.76/19,991.86
  6. Step 6: Final answer
    x = 15,234.43

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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.