Home / 28,776.06-43,164.90-7,999.56

Finding the Fourth Proportional to 28,776.06, 43,164.90 and 7,999.56

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Solution

The fourth proportional to 28,776.06, 43,164.90 and 7,999.56 is: 11,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.06 : 43,164.90 = 7,999.56 : x
  2. Step 2: Convert to fraction form
    28,776.06/43,164.90 = 7,999.56/x
  3. Step 3: Cross multiply
    28,776.06x = 43,164.90 × 7,999.56
  4. Step 4: Simplify right side
    28,776.06x = 345,300,207.44
  5. Step 5: Solve for x
    x = 345,300,207.44/28,776.06
  6. Step 6: Final answer
    x = 11,999.57

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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.