Home / 28,481.21-42,726.68-8,759.33

Finding the Fourth Proportional to 28,481.21, 42,726.68 and 8,759.33

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Solution

The fourth proportional to 28,481.21, 42,726.68 and 8,759.33 is: 13,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.21 : 42,726.68 = 8,759.33 : x
  2. Step 2: Convert to fraction form
    28,481.21/42,726.68 = 8,759.33/x
  3. Step 3: Cross multiply
    28,481.21x = 42,726.68 × 8,759.33
  4. Step 4: Simplify right side
    28,481.21x = 374,256,832.49
  5. Step 5: Solve for x
    x = 374,256,832.49/28,481.21
  6. Step 6: Final answer
    x = 13,140.48

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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.