Home / 20,062.56-30,083.72-11,745.08

Finding the Fourth Proportional to 20,062.56, 30,083.72 and 11,745.08

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Solution

The fourth proportional to 20,062.56, 30,083.72 and 11,745.08 is: 17,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.56 : 30,083.72 = 11,745.08 : x
  2. Step 2: Convert to fraction form
    20,062.56/30,083.72 = 11,745.08/x
  3. Step 3: Cross multiply
    20,062.56x = 30,083.72 × 11,745.08
  4. Step 4: Simplify right side
    20,062.56x = 353,335,698.10
  5. Step 5: Solve for x
    x = 353,335,698.10/20,062.56
  6. Step 6: Final answer
    x = 17,611.70

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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.