Home / 20,525.73-30,790.08-7,378.20

Finding the Fourth Proportional to 20,525.73, 30,790.08 and 7,378.20

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Solution

The fourth proportional to 20,525.73, 30,790.08 and 7,378.20 is: 11,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.73 : 30,790.08 = 7,378.20 : x
  2. Step 2: Convert to fraction form
    20,525.73/30,790.08 = 7,378.20/x
  3. Step 3: Cross multiply
    20,525.73x = 30,790.08 × 7,378.20
  4. Step 4: Simplify right side
    20,525.73x = 227,175,368.26
  5. Step 5: Solve for x
    x = 227,175,368.26/20,525.73
  6. Step 6: Final answer
    x = 11,067.83

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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.