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Finding the Fourth Proportional to 27,992.60, 38,591.08 and 20,020.92

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Solution

The fourth proportional to 27,992.60, 38,591.08 and 20,020.92 is: 27,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.60 : 38,591.08 = 20,020.92 : x
  2. Step 2: Convert to fraction form
    27,992.60/38,591.08 = 20,020.92/x
  3. Step 3: Cross multiply
    27,992.60x = 38,591.08 × 20,020.92
  4. Step 4: Simplify right side
    27,992.60x = 772,628,925.39
  5. Step 5: Solve for x
    x = 772,628,925.39/27,992.60
  6. Step 6: Final answer
    x = 27,601.18

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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.