Home / 31,268.96-43,157.87-19,935.85

Finding the Fourth Proportional to 31,268.96, 43,157.87 and 19,935.85

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Solution

The fourth proportional to 31,268.96, 43,157.87 and 19,935.85 is: 27,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,268.96 : 43,157.87 = 19,935.85 : x
  2. Step 2: Convert to fraction form
    31,268.96/43,157.87 = 19,935.85/x
  3. Step 3: Cross multiply
    31,268.96x = 43,157.87 × 19,935.85
  4. Step 4: Simplify right side
    31,268.96x = 860,388,822.64
  5. Step 5: Solve for x
    x = 860,388,822.64/31,268.96
  6. Step 6: Final answer
    x = 27,515.75

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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.