Home / 20,283.60-27,990.82-11,084.79

Finding the Fourth Proportional to 20,283.60, 27,990.82 and 11,084.79

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Solution

The fourth proportional to 20,283.60, 27,990.82 and 11,084.79 is: 15,296.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.60 : 27,990.82 = 11,084.79 : x
  2. Step 2: Convert to fraction form
    20,283.60/27,990.82 = 11,084.79/x
  3. Step 3: Cross multiply
    20,283.60x = 27,990.82 × 11,084.79
  4. Step 4: Simplify right side
    20,283.60x = 310,272,236.23
  5. Step 5: Solve for x
    x = 310,272,236.23/20,283.60
  6. Step 6: Final answer
    x = 15,296.71

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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.