Home / 18,422.19-27,629.37-5,271.03

Finding the Fourth Proportional to 18,422.19, 27,629.37 and 5,271.03

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Solution

The fourth proportional to 18,422.19, 27,629.37 and 5,271.03 is: 7,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.19 : 27,629.37 = 5,271.03 : x
  2. Step 2: Convert to fraction form
    18,422.19/27,629.37 = 5,271.03/x
  3. Step 3: Cross multiply
    18,422.19x = 27,629.37 × 5,271.03
  4. Step 4: Simplify right side
    18,422.19x = 145,635,238.15
  5. Step 5: Solve for x
    x = 145,635,238.15/18,422.19
  6. Step 6: Final answer
    x = 7,905.42

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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.