Home / 20,843.37-28,763.69-11,283.07

Finding the Fourth Proportional to 20,843.37, 28,763.69 and 11,283.07

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Solution

The fourth proportional to 20,843.37, 28,763.69 and 11,283.07 is: 15,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.37 : 28,763.69 = 11,283.07 : x
  2. Step 2: Convert to fraction form
    20,843.37/28,763.69 = 11,283.07/x
  3. Step 3: Cross multiply
    20,843.37x = 28,763.69 × 11,283.07
  4. Step 4: Simplify right side
    20,843.37x = 324,542,577.55
  5. Step 5: Solve for x
    x = 324,542,577.55/20,843.37
  6. Step 6: Final answer
    x = 15,570.54

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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.