Home / 28,728.62-43,088.06-7,947.26

Finding the Fourth Proportional to 28,728.62, 43,088.06 and 7,947.26

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Solution

The fourth proportional to 28,728.62, 43,088.06 and 7,947.26 is: 11,919.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.62 : 43,088.06 = 7,947.26 : x
  2. Step 2: Convert to fraction form
    28,728.62/43,088.06 = 7,947.26/x
  3. Step 3: Cross multiply
    28,728.62x = 43,088.06 × 7,947.26
  4. Step 4: Simplify right side
    28,728.62x = 342,432,015.72
  5. Step 5: Solve for x
    x = 342,432,015.72/28,728.62
  6. Step 6: Final answer
    x = 11,919.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.