Home / 20,075.72-27,704.58-11,124.68

Finding the Fourth Proportional to 20,075.72, 27,704.58 and 11,124.68

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Solution

The fourth proportional to 20,075.72, 27,704.58 and 11,124.68 is: 15,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.72 : 27,704.58 = 11,124.68 : x
  2. Step 2: Convert to fraction form
    20,075.72/27,704.58 = 11,124.68/x
  3. Step 3: Cross multiply
    20,075.72x = 27,704.58 × 11,124.68
  4. Step 4: Simplify right side
    20,075.72x = 308,204,587.03
  5. Step 5: Solve for x
    x = 308,204,587.03/20,075.72
  6. Step 6: Final answer
    x = 15,352.11

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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.