Home / 30,299.86-45,434.68-19,198.09

Finding the Fourth Proportional to 30,299.86, 45,434.68 and 19,198.09

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Solution

The fourth proportional to 30,299.86, 45,434.68 and 19,198.09 is: 28,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299.86 : 45,434.68 = 19,198.09 : x
  2. Step 2: Convert to fraction form
    30,299.86/45,434.68 = 19,198.09/x
  3. Step 3: Cross multiply
    30,299.86x = 45,434.68 × 19,198.09
  4. Step 4: Simplify right side
    30,299.86x = 872,259,075.76
  5. Step 5: Solve for x
    x = 872,259,075.76/30,299.86
  6. Step 6: Final answer
    x = 28,787.56

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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.