Home / 28,524.36-42,782.22-10,991.64

Finding the Fourth Proportional to 28,524.36, 42,782.22 and 10,991.64

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Solution

The fourth proportional to 28,524.36, 42,782.22 and 10,991.64 is: 16,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,524.36 : 42,782.22 = 10,991.64 : x
  2. Step 2: Convert to fraction form
    28,524.36/42,782.22 = 10,991.64/x
  3. Step 3: Cross multiply
    28,524.36x = 42,782.22 × 10,991.64
  4. Step 4: Simplify right side
    28,524.36x = 470,246,760.64
  5. Step 5: Solve for x
    x = 470,246,760.64/28,524.36
  6. Step 6: Final answer
    x = 16,485.80

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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.