Home / 22,817.15-31,487.32-12,745.73

Finding the Fourth Proportional to 22,817.15, 31,487.32 and 12,745.73

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Solution

The fourth proportional to 22,817.15, 31,487.32 and 12,745.73 is: 17,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,817.15 : 31,487.32 = 12,745.73 : x
  2. Step 2: Convert to fraction form
    22,817.15/31,487.32 = 12,745.73/x
  3. Step 3: Cross multiply
    22,817.15x = 31,487.32 × 12,745.73
  4. Step 4: Simplify right side
    22,817.15x = 401,328,879.14
  5. Step 5: Solve for x
    x = 401,328,879.14/22,817.15
  6. Step 6: Final answer
    x = 17,588.91

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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.