Home / 31,273.86-43,164.62-19,940.74

Finding the Fourth Proportional to 31,273.86, 43,164.62 and 19,940.74

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Solution

The fourth proportional to 31,273.86, 43,164.62 and 19,940.74 is: 27,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,273.86 : 43,164.62 = 19,940.74 : x
  2. Step 2: Convert to fraction form
    31,273.86/43,164.62 = 19,940.74/x
  3. Step 3: Cross multiply
    31,273.86x = 43,164.62 × 19,940.74
  4. Step 4: Simplify right side
    31,273.86x = 860,734,464.62
  5. Step 5: Solve for x
    x = 860,734,464.62/31,273.86
  6. Step 6: Final answer
    x = 27,522.49

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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.