Home / 25,407.96-38,115.54-7,879.26

Finding the Fourth Proportional to 25,407.96, 38,115.54 and 7,879.26

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Solution

The fourth proportional to 25,407.96, 38,115.54 and 7,879.26 is: 11,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.96 : 38,115.54 = 7,879.26 : x
  2. Step 2: Convert to fraction form
    25,407.96/38,115.54 = 7,879.26/x
  3. Step 3: Cross multiply
    25,407.96x = 38,115.54 × 7,879.26
  4. Step 4: Simplify right side
    25,407.96x = 300,322,249.70
  5. Step 5: Solve for x
    x = 300,322,249.70/25,407.96
  6. Step 6: Final answer
    x = 11,820.01

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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.