Home / 20,412.48-30,589.44-11,629.24

Finding the Fourth Proportional to 20,412.48, 30,589.44 and 11,629.24

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Solution

The fourth proportional to 20,412.48, 30,589.44 and 11,629.24 is: 17,427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.48 : 30,589.44 = 11,629.24 : x
  2. Step 2: Convert to fraction form
    20,412.48/30,589.44 = 11,629.24/x
  3. Step 3: Cross multiply
    20,412.48x = 30,589.44 × 11,629.24
  4. Step 4: Simplify right side
    20,412.48x = 355,731,939.23
  5. Step 5: Solve for x
    x = 355,731,939.23/20,412.48
  6. Step 6: Final answer
    x = 17,427.18

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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.