Home / 19,074.20-28,611.30-13,242.20

Finding the Fourth Proportional to 19,074.20, 28,611.30 and 13,242.20

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Solution

The fourth proportional to 19,074.20, 28,611.30 and 13,242.20 is: 19,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.20 : 28,611.30 = 13,242.20 : x
  2. Step 2: Convert to fraction form
    19,074.20/28,611.30 = 13,242.20/x
  3. Step 3: Cross multiply
    19,074.20x = 28,611.30 × 13,242.20
  4. Step 4: Simplify right side
    19,074.20x = 378,876,556.86
  5. Step 5: Solve for x
    x = 378,876,556.86/19,074.20
  6. Step 6: Final answer
    x = 19,863.30

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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.