Home / 20,075.68-27,704.68-11,123.32

Finding the Fourth Proportional to 20,075.68, 27,704.68 and 11,123.32

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Solution

The fourth proportional to 20,075.68, 27,704.68 and 11,123.32 is: 15,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.68 : 27,704.68 = 11,123.32 : x
  2. Step 2: Convert to fraction form
    20,075.68/27,704.68 = 11,123.32/x
  3. Step 3: Cross multiply
    20,075.68x = 27,704.68 × 11,123.32
  4. Step 4: Simplify right side
    20,075.68x = 308,168,021.14
  5. Step 5: Solve for x
    x = 308,168,021.14/20,075.68
  6. Step 6: Final answer
    x = 15,350.32

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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.