Home / 20,075.14-27,704.58-11,122.64

Finding the Fourth Proportional to 20,075.14, 27,704.58 and 11,122.64

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Solution

The fourth proportional to 20,075.14, 27,704.58 and 11,122.64 is: 15,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.14 : 27,704.58 = 11,122.64 : x
  2. Step 2: Convert to fraction form
    20,075.14/27,704.58 = 11,122.64/x
  3. Step 3: Cross multiply
    20,075.14x = 27,704.58 × 11,122.64
  4. Step 4: Simplify right side
    20,075.14x = 308,148,133.83
  5. Step 5: Solve for x
    x = 308,148,133.83/20,075.14
  6. Step 6: Final answer
    x = 15,349.74

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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.