Home / 16,872.95-25,269.98-13,339.22

Finding the Fourth Proportional to 16,872.95, 25,269.98 and 13,339.22

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Solution

The fourth proportional to 16,872.95, 25,269.98 and 13,339.22 is: 19,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.95 : 25,269.98 = 13,339.22 : x
  2. Step 2: Convert to fraction form
    16,872.95/25,269.98 = 13,339.22/x
  3. Step 3: Cross multiply
    16,872.95x = 25,269.98 × 13,339.22
  4. Step 4: Simplify right side
    16,872.95x = 337,081,919.14
  5. Step 5: Solve for x
    x = 337,081,919.14/16,872.95
  6. Step 6: Final answer
    x = 19,977.65

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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.