Home / 33,156.11-49,715.99-13,145.33

Finding the Fourth Proportional to 33,156.11, 49,715.99 and 13,145.33

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Solution

The fourth proportional to 33,156.11, 49,715.99 and 13,145.33 is: 19,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,156.11 : 49,715.99 = 13,145.33 : x
  2. Step 2: Convert to fraction form
    33,156.11/49,715.99 = 13,145.33/x
  3. Step 3: Cross multiply
    33,156.11x = 49,715.99 × 13,145.33
  4. Step 4: Simplify right side
    33,156.11x = 653,533,029.10
  5. Step 5: Solve for x
    x = 653,533,029.10/33,156.11
  6. Step 6: Final answer
    x = 19,710.79

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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.