Home / 27,311.82-40,983.63-11,515.86

Finding the Fourth Proportional to 27,311.82, 40,983.63 and 11,515.86

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Solution

The fourth proportional to 27,311.82, 40,983.63 and 11,515.86 is: 17,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.82 : 40,983.63 = 11,515.86 : x
  2. Step 2: Convert to fraction form
    27,311.82/40,983.63 = 11,515.86/x
  3. Step 3: Cross multiply
    27,311.82x = 40,983.63 × 11,515.86
  4. Step 4: Simplify right side
    27,311.82x = 471,961,745.37
  5. Step 5: Solve for x
    x = 471,961,745.37/27,311.82
  6. Step 6: Final answer
    x = 17,280.49

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1.5x scale

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.