Home / 28,879.07-43,319.78-9,157.19

Finding the Fourth Proportional to 28,879.07, 43,319.78 and 9,157.19

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Solution

The fourth proportional to 28,879.07, 43,319.78 and 9,157.19 is: 13,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.07 : 43,319.78 = 9,157.19 : x
  2. Step 2: Convert to fraction form
    28,879.07/43,319.78 = 9,157.19/x
  3. Step 3: Cross multiply
    28,879.07x = 43,319.78 × 9,157.19
  4. Step 4: Simplify right side
    28,879.07x = 396,687,456.22
  5. Step 5: Solve for x
    x = 396,687,456.22/28,879.07
  6. Step 6: Final answer
    x = 13,736.16

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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.