Home / 22,438.48-30,964.44-12,879.76

Finding the Fourth Proportional to 22,438.48, 30,964.44 and 12,879.76

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Solution

The fourth proportional to 22,438.48, 30,964.44 and 12,879.76 is: 17,773.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,438.48 : 30,964.44 = 12,879.76 : x
  2. Step 2: Convert to fraction form
    22,438.48/30,964.44 = 12,879.76/x
  3. Step 3: Cross multiply
    22,438.48x = 30,964.44 × 12,879.76
  4. Step 4: Simplify right side
    22,438.48x = 398,814,555.73
  5. Step 5: Solve for x
    x = 398,814,555.73/22,438.48
  6. Step 6: Final answer
    x = 17,773.69

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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.