Home / 19,956.33-27,540.90-11,005.74

Finding the Fourth Proportional to 19,956.33, 27,540.90 and 11,005.74

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Solution

The fourth proportional to 19,956.33, 27,540.90 and 11,005.74 is: 15,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.33 : 27,540.90 = 11,005.74 : x
  2. Step 2: Convert to fraction form
    19,956.33/27,540.90 = 11,005.74/x
  3. Step 3: Cross multiply
    19,956.33x = 27,540.90 × 11,005.74
  4. Step 4: Simplify right side
    19,956.33x = 303,107,984.77
  5. Step 5: Solve for x
    x = 303,107,984.77/19,956.33
  6. Step 6: Final answer
    x = 15,188.56

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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.