Home / 19,639.44-29,442.60-7,960.86

Finding the Fourth Proportional to 19,639.44, 29,442.60 and 7,960.86

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Solution

The fourth proportional to 19,639.44, 29,442.60 and 7,960.86 is: 11,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.44 : 29,442.60 = 7,960.86 : x
  2. Step 2: Convert to fraction form
    19,639.44/29,442.60 = 7,960.86/x
  3. Step 3: Cross multiply
    19,639.44x = 29,442.60 × 7,960.86
  4. Step 4: Simplify right side
    19,639.44x = 234,388,416.64
  5. Step 5: Solve for x
    x = 234,388,416.64/19,639.44
  6. Step 6: Final answer
    x = 11,934.58

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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.