Home / 22,120.78-33,011.30-19,756.09

Finding the Fourth Proportional to 22,120.78, 33,011.30 and 19,756.09

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Solution

The fourth proportional to 22,120.78, 33,011.30 and 19,756.09 is: 29,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120.78 : 33,011.30 = 19,756.09 : x
  2. Step 2: Convert to fraction form
    22,120.78/33,011.30 = 19,756.09/x
  3. Step 3: Cross multiply
    22,120.78x = 33,011.30 × 19,756.09
  4. Step 4: Simplify right side
    22,120.78x = 652,174,213.82
  5. Step 5: Solve for x
    x = 652,174,213.82/22,120.78
  6. Step 6: Final answer
    x = 29,482.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.