Home / 28,546.16-39,393.42-15,971

Finding the Fourth Proportional to 28,546.16, 39,393.42 and 15,971

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Solution

The fourth proportional to 28,546.16, 39,393.42 and 15,971 is: 22,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.16 : 39,393.42 = 15,971 : x
  2. Step 2: Convert to fraction form
    28,546.16/39,393.42 = 15,971/x
  3. Step 3: Cross multiply
    28,546.16x = 39,393.42 × 15,971
  4. Step 4: Simplify right side
    28,546.16x = 629,152,310.82
  5. Step 5: Solve for x
    x = 629,152,310.82/28,546.16
  6. Step 6: Final answer
    x = 22,039.82

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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.