Home / 19,716.40-29,578.85-5,676.33

Finding the Fourth Proportional to 19,716.40, 29,578.85 and 5,676.33

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Solution

The fourth proportional to 19,716.40, 29,578.85 and 5,676.33 is: 8,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.40 : 29,578.85 = 5,676.33 : x
  2. Step 2: Convert to fraction form
    19,716.40/29,578.85 = 5,676.33/x
  3. Step 3: Cross multiply
    19,716.40x = 29,578.85 × 5,676.33
  4. Step 4: Simplify right side
    19,716.40x = 167,899,285.24
  5. Step 5: Solve for x
    x = 167,899,285.24/19,716.40
  6. Step 6: Final answer
    x = 8,515.72

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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.