Home / 19,745.18-27,240.55-11,357.18

Finding the Fourth Proportional to 19,745.18, 27,240.55 and 11,357.18

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Solution

The fourth proportional to 19,745.18, 27,240.55 and 11,357.18 is: 15,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,745.18 : 27,240.55 = 11,357.18 : x
  2. Step 2: Convert to fraction form
    19,745.18/27,240.55 = 11,357.18/x
  3. Step 3: Cross multiply
    19,745.18x = 27,240.55 × 11,357.18
  4. Step 4: Simplify right side
    19,745.18x = 309,375,829.65
  5. Step 5: Solve for x
    x = 309,375,829.65/19,745.18
  6. Step 6: Final answer
    x = 15,668.42

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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.