Home / 31,187.28-46,791.72-19,486.56

Finding the Fourth Proportional to 31,187.28, 46,791.72 and 19,486.56

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Solution

The fourth proportional to 31,187.28, 46,791.72 and 19,486.56 is: 29,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.28 : 46,791.72 = 19,486.56 : x
  2. Step 2: Convert to fraction form
    31,187.28/46,791.72 = 19,486.56/x
  3. Step 3: Cross multiply
    31,187.28x = 46,791.72 × 19,486.56
  4. Step 4: Simplify right side
    31,187.28x = 911,809,659.28
  5. Step 5: Solve for x
    x = 911,809,659.28/31,187.28
  6. Step 6: Final answer
    x = 29,236.59

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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.