Home / 31,268.39-43,157.07-19,935.27

Finding the Fourth Proportional to 31,268.39, 43,157.07 and 19,935.27

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Solution

The fourth proportional to 31,268.39, 43,157.07 and 19,935.27 is: 27,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,268.39 : 43,157.07 = 19,935.27 : x
  2. Step 2: Convert to fraction form
    31,268.39/43,157.07 = 19,935.27/x
  3. Step 3: Cross multiply
    31,268.39x = 43,157.07 × 19,935.27
  4. Step 4: Simplify right side
    31,268.39x = 860,347,842.86
  5. Step 5: Solve for x
    x = 860,347,842.86/31,268.39
  6. Step 6: Final answer
    x = 27,514.94

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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.