Home / 20,027.87-27,638.64-11,075.97

Finding the Fourth Proportional to 20,027.87, 27,638.64 and 11,075.97

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Solution

The fourth proportional to 20,027.87, 27,638.64 and 11,075.97 is: 15,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.87 : 27,638.64 = 11,075.97 : x
  2. Step 2: Convert to fraction form
    20,027.87/27,638.64 = 11,075.97/x
  3. Step 3: Cross multiply
    20,027.87x = 27,638.64 × 11,075.97
  4. Step 4: Simplify right side
    20,027.87x = 306,124,747.48
  5. Step 5: Solve for x
    x = 306,124,747.48/20,027.87
  6. Step 6: Final answer
    x = 15,284.94

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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.