Home / 31,378.44-43,302.55-17,231.59

Finding the Fourth Proportional to 31,378.44, 43,302.55 and 17,231.59

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Solution

The fourth proportional to 31,378.44, 43,302.55 and 17,231.59 is: 23,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.44 : 43,302.55 = 17,231.59 : x
  2. Step 2: Convert to fraction form
    31,378.44/43,302.55 = 17,231.59/x
  3. Step 3: Cross multiply
    31,378.44x = 43,302.55 × 17,231.59
  4. Step 4: Simplify right side
    31,378.44x = 746,171,571.04
  5. Step 5: Solve for x
    x = 746,171,571.04/31,378.44
  6. Step 6: Final answer
    x = 23,779.75

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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.