Home / 20,236.30-27,922.71-11,281.84

Finding the Fourth Proportional to 20,236.30, 27,922.71 and 11,281.84

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Solution

The fourth proportional to 20,236.30, 27,922.71 and 11,281.84 is: 15,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.30 : 27,922.71 = 11,281.84 : x
  2. Step 2: Convert to fraction form
    20,236.30/27,922.71 = 11,281.84/x
  3. Step 3: Cross multiply
    20,236.30x = 27,922.71 × 11,281.84
  4. Step 4: Simplify right side
    20,236.30x = 315,019,546.59
  5. Step 5: Solve for x
    x = 315,019,546.59/20,236.30
  6. Step 6: Final answer
    x = 15,567.05

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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.