Home / 27,111.34-37,379.91-20,745.82

Finding the Fourth Proportional to 27,111.34, 37,379.91 and 20,745.82

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Solution

The fourth proportional to 27,111.34, 37,379.91 and 20,745.82 is: 28,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.34 : 37,379.91 = 20,745.82 : x
  2. Step 2: Convert to fraction form
    27,111.34/37,379.91 = 20,745.82/x
  3. Step 3: Cross multiply
    27,111.34x = 37,379.91 × 20,745.82
  4. Step 4: Simplify right side
    27,111.34x = 775,476,884.48
  5. Step 5: Solve for x
    x = 775,476,884.48/27,111.34
  6. Step 6: Final answer
    x = 28,603.41

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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.