Home / 20,768.33-28,659.29-11,814.99

Finding the Fourth Proportional to 20,768.33, 28,659.29 and 11,814.99

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Solution

The fourth proportional to 20,768.33, 28,659.29 and 11,814.99 is: 16,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768.33 : 28,659.29 = 11,814.99 : x
  2. Step 2: Convert to fraction form
    20,768.33/28,659.29 = 11,814.99/x
  3. Step 3: Cross multiply
    20,768.33x = 28,659.29 × 11,814.99
  4. Step 4: Simplify right side
    20,768.33x = 338,609,022.39
  5. Step 5: Solve for x
    x = 338,609,022.39/20,768.33
  6. Step 6: Final answer
    x = 16,304.11

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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.