Home / 22,075.20-33,021.68-20,128.77

Finding the Fourth Proportional to 22,075.20, 33,021.68 and 20,128.77

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Solution

The fourth proportional to 22,075.20, 33,021.68 and 20,128.77 is: 30,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,075.20 : 33,021.68 = 20,128.77 : x
  2. Step 2: Convert to fraction form
    22,075.20/33,021.68 = 20,128.77/x
  3. Step 3: Cross multiply
    22,075.20x = 33,021.68 × 20,128.77
  4. Step 4: Simplify right side
    22,075.20x = 664,685,701.09
  5. Step 5: Solve for x
    x = 664,685,701.09/22,075.20
  6. Step 6: Final answer
    x = 30,110.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.