Home / 20,181.89-30,272.54-9,080.75

Finding the Fourth Proportional to 20,181.89, 30,272.54 and 9,080.75

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Solution

The fourth proportional to 20,181.89, 30,272.54 and 9,080.75 is: 13,620.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.89 : 30,272.54 = 9,080.75 : x
  2. Step 2: Convert to fraction form
    20,181.89/30,272.54 = 9,080.75/x
  3. Step 3: Cross multiply
    20,181.89x = 30,272.54 × 9,080.75
  4. Step 4: Simplify right side
    20,181.89x = 274,897,397.88
  5. Step 5: Solve for x
    x = 274,897,397.88/20,181.89
  6. Step 6: Final answer
    x = 13,620.99

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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.