Home / 22,382.26-30,887.61-12,311.74

Finding the Fourth Proportional to 22,382.26, 30,887.61 and 12,311.74

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Solution

The fourth proportional to 22,382.26, 30,887.61 and 12,311.74 is: 16,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,382.26 : 30,887.61 = 12,311.74 : x
  2. Step 2: Convert to fraction form
    22,382.26/30,887.61 = 12,311.74/x
  3. Step 3: Cross multiply
    22,382.26x = 30,887.61 × 12,311.74
  4. Step 4: Simplify right side
    22,382.26x = 380,280,223.54
  5. Step 5: Solve for x
    x = 380,280,223.54/22,382.26
  6. Step 6: Final answer
    x = 16,990.25

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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.