Home / 20,266.82-30,196.38-19,135.04

Finding the Fourth Proportional to 20,266.82, 30,196.38 and 19,135.04

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Solution

The fourth proportional to 20,266.82, 30,196.38 and 19,135.04 is: 28,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.82 : 30,196.38 = 19,135.04 : x
  2. Step 2: Convert to fraction form
    20,266.82/30,196.38 = 19,135.04/x
  3. Step 3: Cross multiply
    20,266.82x = 30,196.38 × 19,135.04
  4. Step 4: Simplify right side
    20,266.82x = 577,809,014.65
  5. Step 5: Solve for x
    x = 577,809,014.65/20,266.82
  6. Step 6: Final answer
    x = 28,510.10

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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.