Home / 17,868.80-26,722.74-13,653.38

Finding the Fourth Proportional to 17,868.80, 26,722.74 and 13,653.38

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Solution

The fourth proportional to 17,868.80, 26,722.74 and 13,653.38 is: 20,418.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,868.80 : 26,722.74 = 13,653.38 : x
  2. Step 2: Convert to fraction form
    17,868.80/26,722.74 = 13,653.38/x
  3. Step 3: Cross multiply
    17,868.80x = 26,722.74 × 13,653.38
  4. Step 4: Simplify right side
    17,868.80x = 364,855,723.86
  5. Step 5: Solve for x
    x = 364,855,723.86/17,868.80
  6. Step 6: Final answer
    x = 20,418.59

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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.