Home / 22,321.88-30,804.64-12,249.72

Finding the Fourth Proportional to 22,321.88, 30,804.64 and 12,249.72

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Solution

The fourth proportional to 22,321.88, 30,804.64 and 12,249.72 is: 16,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,321.88 : 30,804.64 = 12,249.72 : x
  2. Step 2: Convert to fraction form
    22,321.88/30,804.64 = 12,249.72/x
  3. Step 3: Cross multiply
    22,321.88x = 30,804.64 × 12,249.72
  4. Step 4: Simplify right side
    22,321.88x = 377,348,214.70
  5. Step 5: Solve for x
    x = 377,348,214.70/22,321.88
  6. Step 6: Final answer
    x = 16,904.86

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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.