Home / 22,377.06-30,879.69-12,305.49

Finding the Fourth Proportional to 22,377.06, 30,879.69 and 12,305.49

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Solution

The fourth proportional to 22,377.06, 30,879.69 and 12,305.49 is: 16,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,377.06 : 30,879.69 = 12,305.49 : x
  2. Step 2: Convert to fraction form
    22,377.06/30,879.69 = 12,305.49/x
  3. Step 3: Cross multiply
    22,377.06x = 30,879.69 × 12,305.49
  4. Step 4: Simplify right side
    22,377.06x = 379,989,716.50
  5. Step 5: Solve for x
    x = 379,989,716.50/22,377.06
  6. Step 6: Final answer
    x = 16,981.22

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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.