Home / 28,540.46-39,389.56-15,969.26

Finding the Fourth Proportional to 28,540.46, 39,389.56 and 15,969.26

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Solution

The fourth proportional to 28,540.46, 39,389.56 and 15,969.26 is: 22,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.46 : 39,389.56 = 15,969.26 : x
  2. Step 2: Convert to fraction form
    28,540.46/39,389.56 = 15,969.26/x
  3. Step 3: Cross multiply
    28,540.46x = 39,389.56 × 15,969.26
  4. Step 4: Simplify right side
    28,540.46x = 629,022,124.93
  5. Step 5: Solve for x
    x = 629,022,124.93/28,540.46
  6. Step 6: Final answer
    x = 22,039.66

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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.