Home / 23,120.64-34,680.72-12,021.60

Finding the Fourth Proportional to 23,120.64, 34,680.72 and 12,021.60

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Solution

The fourth proportional to 23,120.64, 34,680.72 and 12,021.60 is: 18,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.64 : 34,680.72 = 12,021.60 : x
  2. Step 2: Convert to fraction form
    23,120.64/34,680.72 = 12,021.60/x
  3. Step 3: Cross multiply
    23,120.64x = 34,680.72 × 12,021.60
  4. Step 4: Simplify right side
    23,120.64x = 416,917,743.55
  5. Step 5: Solve for x
    x = 416,917,743.55/23,120.64
  6. Step 6: Final answer
    x = 18,032.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.