Home / 22,816.22-31,486.11-12,745.64

Finding the Fourth Proportional to 22,816.22, 31,486.11 and 12,745.64

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Solution

The fourth proportional to 22,816.22, 31,486.11 and 12,745.64 is: 17,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,816.22 : 31,486.11 = 12,745.64 : x
  2. Step 2: Convert to fraction form
    22,816.22/31,486.11 = 12,745.64/x
  3. Step 3: Cross multiply
    22,816.22x = 31,486.11 × 12,745.64
  4. Step 4: Simplify right side
    22,816.22x = 401,310,465.63
  5. Step 5: Solve for x
    x = 401,310,465.63/22,816.22
  6. Step 6: Final answer
    x = 17,588.83

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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.