Home / 22,303.76-30,778.99-12,231.71

Finding the Fourth Proportional to 22,303.76, 30,778.99 and 12,231.71

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Solution

The fourth proportional to 22,303.76, 30,778.99 and 12,231.71 is: 16,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.76 : 30,778.99 = 12,231.71 : x
  2. Step 2: Convert to fraction form
    22,303.76/30,778.99 = 12,231.71/x
  3. Step 3: Cross multiply
    22,303.76x = 30,778.99 × 12,231.71
  4. Step 4: Simplify right side
    22,303.76x = 376,479,610.72
  5. Step 5: Solve for x
    x = 376,479,610.72/22,303.76
  6. Step 6: Final answer
    x = 16,879.65

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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.