Home / 20,152.14-27,805.68-11,197.80

Finding the Fourth Proportional to 20,152.14, 27,805.68 and 11,197.80

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Solution

The fourth proportional to 20,152.14, 27,805.68 and 11,197.80 is: 15,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.14 : 27,805.68 = 11,197.80 : x
  2. Step 2: Convert to fraction form
    20,152.14/27,805.68 = 11,197.80/x
  3. Step 3: Cross multiply
    20,152.14x = 27,805.68 × 11,197.80
  4. Step 4: Simplify right side
    20,152.14x = 311,362,443.50
  5. Step 5: Solve for x
    x = 311,362,443.50/20,152.14
  6. Step 6: Final answer
    x = 15,450.59

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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.