Home / 27,998.06-38,619.60-16,659.68

Finding the Fourth Proportional to 27,998.06, 38,619.60 and 16,659.68

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Solution

The fourth proportional to 27,998.06, 38,619.60 and 16,659.68 is: 22,979.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.06 : 38,619.60 = 16,659.68 : x
  2. Step 2: Convert to fraction form
    27,998.06/38,619.60 = 16,659.68/x
  3. Step 3: Cross multiply
    27,998.06x = 38,619.60 × 16,659.68
  4. Step 4: Simplify right side
    27,998.06x = 643,390,177.73
  5. Step 5: Solve for x
    x = 643,390,177.73/27,998.06
  6. Step 6: Final answer
    x = 22,979.81

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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.