Home / 20,028.25-27,638.53-11,075.83

Finding the Fourth Proportional to 20,028.25, 27,638.53 and 11,075.83

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Solution

The fourth proportional to 20,028.25, 27,638.53 and 11,075.83 is: 15,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.25 : 27,638.53 = 11,075.83 : x
  2. Step 2: Convert to fraction form
    20,028.25/27,638.53 = 11,075.83/x
  3. Step 3: Cross multiply
    20,028.25x = 27,638.53 × 11,075.83
  4. Step 4: Simplify right side
    20,028.25x = 306,119,659.73
  5. Step 5: Solve for x
    x = 306,119,659.73/20,028.25
  6. Step 6: Final answer
    x = 15,284.39

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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.