Home / 28,790.56-43,182.04-11,272.80

Finding the Fourth Proportional to 28,790.56, 43,182.04 and 11,272.80

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Solution

The fourth proportional to 28,790.56, 43,182.04 and 11,272.80 is: 16,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.56 : 43,182.04 = 11,272.80 : x
  2. Step 2: Convert to fraction form
    28,790.56/43,182.04 = 11,272.80/x
  3. Step 3: Cross multiply
    28,790.56x = 43,182.04 × 11,272.80
  4. Step 4: Simplify right side
    28,790.56x = 486,782,500.51
  5. Step 5: Solve for x
    x = 486,782,500.51/28,790.56
  6. Step 6: Final answer
    x = 16,907.71

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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.