Home / 33,638.58-46,421.16-18,531.42

Finding the Fourth Proportional to 33,638.58, 46,421.16 and 18,531.42

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Solution

The fourth proportional to 33,638.58, 46,421.16 and 18,531.42 is: 25,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,638.58 : 46,421.16 = 18,531.42 : x
  2. Step 2: Convert to fraction form
    33,638.58/46,421.16 = 18,531.42/x
  3. Step 3: Cross multiply
    33,638.58x = 46,421.16 × 18,531.42
  4. Step 4: Simplify right side
    33,638.58x = 860,250,012.85
  5. Step 5: Solve for x
    x = 860,250,012.85/33,638.58
  6. Step 6: Final answer
    x = 25,573.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.