Home / 22,311.86-30,790.25-12,240.05

Finding the Fourth Proportional to 22,311.86, 30,790.25 and 12,240.05

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Solution

The fourth proportional to 22,311.86, 30,790.25 and 12,240.05 is: 16,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.86 : 30,790.25 = 12,240.05 : x
  2. Step 2: Convert to fraction form
    22,311.86/30,790.25 = 12,240.05/x
  3. Step 3: Cross multiply
    22,311.86x = 30,790.25 × 12,240.05
  4. Step 4: Simplify right side
    22,311.86x = 376,873,984.36
  5. Step 5: Solve for x
    x = 376,873,984.36/22,311.86
  6. Step 6: Final answer
    x = 16,891.19

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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.