Home / 22,376.75-30,879.26-12,305.18

Finding the Fourth Proportional to 22,376.75, 30,879.26 and 12,305.18

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Solution

The fourth proportional to 22,376.75, 30,879.26 and 12,305.18 is: 16,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.75 : 30,879.26 = 12,305.18 : x
  2. Step 2: Convert to fraction form
    22,376.75/30,879.26 = 12,305.18/x
  3. Step 3: Cross multiply
    22,376.75x = 30,879.26 × 12,305.18
  4. Step 4: Simplify right side
    22,376.75x = 379,974,852.57
  5. Step 5: Solve for x
    x = 379,974,852.57/22,376.75
  6. Step 6: Final answer
    x = 16,980.79

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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.