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Finding the Fourth Proportional to 30,556.32, 45,811.44 and 15,745.44

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Solution

The fourth proportional to 30,556.32, 45,811.44 and 15,745.44 is: 23,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.32 : 45,811.44 = 15,745.44 : x
  2. Step 2: Convert to fraction form
    30,556.32/45,811.44 = 15,745.44/x
  3. Step 3: Cross multiply
    30,556.32x = 45,811.44 × 15,745.44
  4. Step 4: Simplify right side
    30,556.32x = 721,321,279.83
  5. Step 5: Solve for x
    x = 721,321,279.83/30,556.32
  6. Step 6: Final answer
    x = 23,606.29

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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.