Home / 20,206.09-27,885.26-11,253.59

Finding the Fourth Proportional to 20,206.09, 27,885.26 and 11,253.59

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Solution

The fourth proportional to 20,206.09, 27,885.26 and 11,253.59 is: 15,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.09 : 27,885.26 = 11,253.59 : x
  2. Step 2: Convert to fraction form
    20,206.09/27,885.26 = 11,253.59/x
  3. Step 3: Cross multiply
    20,206.09x = 27,885.26 × 11,253.59
  4. Step 4: Simplify right side
    20,206.09x = 313,809,315.57
  5. Step 5: Solve for x
    x = 313,809,315.57/20,206.09
  6. Step 6: Final answer
    x = 15,530.43

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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.