Home / 22,450.21-30,980.93-12,379.59

Finding the Fourth Proportional to 22,450.21, 30,980.93 and 12,379.59

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Solution

The fourth proportional to 22,450.21, 30,980.93 and 12,379.59 is: 17,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,450.21 : 30,980.93 = 12,379.59 : x
  2. Step 2: Convert to fraction form
    22,450.21/30,980.93 = 12,379.59/x
  3. Step 3: Cross multiply
    22,450.21x = 30,980.93 × 12,379.59
  4. Step 4: Simplify right side
    22,450.21x = 383,531,149.32
  5. Step 5: Solve for x
    x = 383,531,149.32/22,450.21
  6. Step 6: Final answer
    x = 17,083.63

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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.