Home / 28,400.44-39,193.26-15,825.96

Finding the Fourth Proportional to 28,400.44, 39,193.26 and 15,825.96

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Solution

The fourth proportional to 28,400.44, 39,193.26 and 15,825.96 is: 21,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.44 : 39,193.26 = 15,825.96 : x
  2. Step 2: Convert to fraction form
    28,400.44/39,193.26 = 15,825.96/x
  3. Step 3: Cross multiply
    28,400.44x = 39,193.26 × 15,825.96
  4. Step 4: Simplify right side
    28,400.44x = 620,270,965.03
  5. Step 5: Solve for x
    x = 620,270,965.03/28,400.44
  6. Step 6: Final answer
    x = 21,840.19

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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.