Home / 31,739.32-43,799.82-18,310.60

Finding the Fourth Proportional to 31,739.32, 43,799.82 and 18,310.60

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Solution

The fourth proportional to 31,739.32, 43,799.82 and 18,310.60 is: 25,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.32 : 43,799.82 = 18,310.60 : x
  2. Step 2: Convert to fraction form
    31,739.32/43,799.82 = 18,310.60/x
  3. Step 3: Cross multiply
    31,739.32x = 43,799.82 × 18,310.60
  4. Step 4: Simplify right side
    31,739.32x = 802,000,984.09
  5. Step 5: Solve for x
    x = 802,000,984.09/31,739.32
  6. Step 6: Final answer
    x = 25,268.37

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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.