Home / 20,212.40-27,883.88-11,824.08

Finding the Fourth Proportional to 20,212.40, 27,883.88 and 11,824.08

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Solution

The fourth proportional to 20,212.40, 27,883.88 and 11,824.08 is: 16,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.40 : 27,883.88 = 11,824.08 : x
  2. Step 2: Convert to fraction form
    20,212.40/27,883.88 = 11,824.08/x
  3. Step 3: Cross multiply
    20,212.40x = 27,883.88 × 11,824.08
  4. Step 4: Simplify right side
    20,212.40x = 329,701,227.83
  5. Step 5: Solve for x
    x = 329,701,227.83/20,212.40
  6. Step 6: Final answer
    x = 16,311.83

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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.