Home / 28,820.90-43,230.26-9,100.64

Finding the Fourth Proportional to 28,820.90, 43,230.26 and 9,100.64

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Solution

The fourth proportional to 28,820.90, 43,230.26 and 9,100.64 is: 13,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.90 : 43,230.26 = 9,100.64 : x
  2. Step 2: Convert to fraction form
    28,820.90/43,230.26 = 9,100.64/x
  3. Step 3: Cross multiply
    28,820.90x = 43,230.26 × 9,100.64
  4. Step 4: Simplify right side
    28,820.90x = 393,422,839.97
  5. Step 5: Solve for x
    x = 393,422,839.97/28,820.90
  6. Step 6: Final answer
    x = 13,650.61

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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.