Home / 19,992.12-27,588.72-11,039.10

Finding the Fourth Proportional to 19,992.12, 27,588.72 and 11,039.10

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Solution

The fourth proportional to 19,992.12, 27,588.72 and 11,039.10 is: 15,233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.12 : 27,588.72 = 11,039.10 : x
  2. Step 2: Convert to fraction form
    19,992.12/27,588.72 = 11,039.10/x
  3. Step 3: Cross multiply
    19,992.12x = 27,588.72 × 11,039.10
  4. Step 4: Simplify right side
    19,992.12x = 304,554,638.95
  5. Step 5: Solve for x
    x = 304,554,638.95/19,992.12
  6. Step 6: Final answer
    x = 15,233.73

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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.