Home / 21,936.73-30,272.60-11,865.18

Finding the Fourth Proportional to 21,936.73, 30,272.60 and 11,865.18

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Solution

The fourth proportional to 21,936.73, 30,272.60 and 11,865.18 is: 16,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.73 : 30,272.60 = 11,865.18 : x
  2. Step 2: Convert to fraction form
    21,936.73/30,272.60 = 11,865.18/x
  3. Step 3: Cross multiply
    21,936.73x = 30,272.60 × 11,865.18
  4. Step 4: Simplify right side
    21,936.73x = 359,189,788.74
  5. Step 5: Solve for x
    x = 359,189,788.74/21,936.73
  6. Step 6: Final answer
    x = 16,373.90

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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.