Home / 22,311.66-30,790.38-12,239.45

Finding the Fourth Proportional to 22,311.66, 30,790.38 and 12,239.45

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Solution

The fourth proportional to 22,311.66, 30,790.38 and 12,239.45 is: 16,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.66 : 30,790.38 = 12,239.45 : x
  2. Step 2: Convert to fraction form
    22,311.66/30,790.38 = 12,239.45/x
  3. Step 3: Cross multiply
    22,311.66x = 30,790.38 × 12,239.45
  4. Step 4: Simplify right side
    22,311.66x = 376,857,316.49
  5. Step 5: Solve for x
    x = 376,857,316.49/22,311.66
  6. Step 6: Final answer
    x = 16,890.60

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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.