Home / 20,075.45-27,704.10-11,577.44

Finding the Fourth Proportional to 20,075.45, 27,704.10 and 11,577.44

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Solution

The fourth proportional to 20,075.45, 27,704.10 and 11,577.44 is: 15,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.45 : 27,704.10 = 11,577.44 : x
  2. Step 2: Convert to fraction form
    20,075.45/27,704.10 = 11,577.44/x
  3. Step 3: Cross multiply
    20,075.45x = 27,704.10 × 11,577.44
  4. Step 4: Simplify right side
    20,075.45x = 320,742,674.58
  5. Step 5: Solve for x
    x = 320,742,674.58/20,075.45
  6. Step 6: Final answer
    x = 15,976.86

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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.