Home / 22,847.20-31,529.22-13,289.38

Finding the Fourth Proportional to 22,847.20, 31,529.22 and 13,289.38

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Solution

The fourth proportional to 22,847.20, 31,529.22 and 13,289.38 is: 18,339.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,847.20 : 31,529.22 = 13,289.38 : x
  2. Step 2: Convert to fraction form
    22,847.20/31,529.22 = 13,289.38/x
  3. Step 3: Cross multiply
    22,847.20x = 31,529.22 × 13,289.38
  4. Step 4: Simplify right side
    22,847.20x = 419,003,785.68
  5. Step 5: Solve for x
    x = 419,003,785.68/22,847.20
  6. Step 6: Final answer
    x = 18,339.39

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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.