Home / 19,758.08-27,271.68-11,377.92

Finding the Fourth Proportional to 19,758.08, 27,271.68 and 11,377.92

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Solution

The fourth proportional to 19,758.08, 27,271.68 and 11,377.92 is: 15,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.08 : 27,271.68 = 11,377.92 : x
  2. Step 2: Convert to fraction form
    19,758.08/27,271.68 = 11,377.92/x
  3. Step 3: Cross multiply
    19,758.08x = 27,271.68 × 11,377.92
  4. Step 4: Simplify right side
    19,758.08x = 310,294,993.31
  5. Step 5: Solve for x
    x = 310,294,993.31/19,758.08
  6. Step 6: Final answer
    x = 15,704.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.