Home / 19,971.72-27,561.06-11,588.04

Finding the Fourth Proportional to 19,971.72, 27,561.06 and 11,588.04

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Solution

The fourth proportional to 19,971.72, 27,561.06 and 11,588.04 is: 15,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.72 : 27,561.06 = 11,588.04 : x
  2. Step 2: Convert to fraction form
    19,971.72/27,561.06 = 11,588.04/x
  3. Step 3: Cross multiply
    19,971.72x = 27,561.06 × 11,588.04
  4. Step 4: Simplify right side
    19,971.72x = 319,378,665.72
  5. Step 5: Solve for x
    x = 319,378,665.72/19,971.72
  6. Step 6: Final answer
    x = 15,991.55

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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.