Home / 22,199.44-30,632.40-12,640.60

Finding the Fourth Proportional to 22,199.44, 30,632.40 and 12,640.60

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Solution

The fourth proportional to 22,199.44, 30,632.40 and 12,640.60 is: 17,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.44 : 30,632.40 = 12,640.60 : x
  2. Step 2: Convert to fraction form
    22,199.44/30,632.40 = 12,640.60/x
  3. Step 3: Cross multiply
    22,199.44x = 30,632.40 × 12,640.60
  4. Step 4: Simplify right side
    22,199.44x = 387,211,915.44
  5. Step 5: Solve for x
    x = 387,211,915.44/22,199.44
  6. Step 6: Final answer
    x = 17,442.42

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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.