Home / 28,504.22-42,764.90-20,200.23

Finding the Fourth Proportional to 28,504.22, 42,764.90 and 20,200.23

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Solution

The fourth proportional to 28,504.22, 42,764.90 and 20,200.23 is: 30,306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.22 : 42,764.90 = 20,200.23 : x
  2. Step 2: Convert to fraction form
    28,504.22/42,764.90 = 20,200.23/x
  3. Step 3: Cross multiply
    28,504.22x = 42,764.90 × 20,200.23
  4. Step 4: Simplify right side
    28,504.22x = 863,860,714.93
  5. Step 5: Solve for x
    x = 863,860,714.93/28,504.22
  6. Step 6: Final answer
    x = 30,306.42

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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.