Home / 20,620.44-30,933.09-15,459.12

Finding the Fourth Proportional to 20,620.44, 30,933.09 and 15,459.12

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Solution

The fourth proportional to 20,620.44, 30,933.09 and 15,459.12 is: 23,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.44 : 30,933.09 = 15,459.12 : x
  2. Step 2: Convert to fraction form
    20,620.44/30,933.09 = 15,459.12/x
  3. Step 3: Cross multiply
    20,620.44x = 30,933.09 × 15,459.12
  4. Step 4: Simplify right side
    20,620.44x = 478,198,350.28
  5. Step 5: Solve for x
    x = 478,198,350.28/20,620.44
  6. Step 6: Final answer
    x = 23,190.50

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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.