Home / 22,310.42-30,790.32-12,240.81

Finding the Fourth Proportional to 22,310.42, 30,790.32 and 12,240.81

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Solution

The fourth proportional to 22,310.42, 30,790.32 and 12,240.81 is: 16,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.42 : 30,790.32 = 12,240.81 : x
  2. Step 2: Convert to fraction form
    22,310.42/30,790.32 = 12,240.81/x
  3. Step 3: Cross multiply
    22,310.42x = 30,790.32 × 12,240.81
  4. Step 4: Simplify right side
    22,310.42x = 376,898,456.96
  5. Step 5: Solve for x
    x = 376,898,456.96/22,310.42
  6. Step 6: Final answer
    x = 16,893.39

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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.