Home / 28,546.36-39,392.92-15,971.12

Finding the Fourth Proportional to 28,546.36, 39,392.92 and 15,971.12

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Solution

The fourth proportional to 28,546.36, 39,392.92 and 15,971.12 is: 22,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.36 : 39,392.92 = 15,971.12 : x
  2. Step 2: Convert to fraction form
    28,546.36/39,392.92 = 15,971.12/x
  3. Step 3: Cross multiply
    28,546.36x = 39,392.92 × 15,971.12
  4. Step 4: Simplify right side
    28,546.36x = 629,149,052.47
  5. Step 5: Solve for x
    x = 629,149,052.47/28,546.36
  6. Step 6: Final answer
    x = 22,039.55

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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.