Home / 20,166.03-27,826.49-11,211.75

Finding the Fourth Proportional to 20,166.03, 27,826.49 and 11,211.75

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Solution

The fourth proportional to 20,166.03, 27,826.49 and 11,211.75 is: 15,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.03 : 27,826.49 = 11,211.75 : x
  2. Step 2: Convert to fraction form
    20,166.03/27,826.49 = 11,211.75/x
  3. Step 3: Cross multiply
    20,166.03x = 27,826.49 × 11,211.75
  4. Step 4: Simplify right side
    20,166.03x = 311,983,677.29
  5. Step 5: Solve for x
    x = 311,983,677.29/20,166.03
  6. Step 6: Final answer
    x = 15,470.75

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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.