Home / 28,729.80-43,077.06-11,179.20

Finding the Fourth Proportional to 28,729.80, 43,077.06 and 11,179.20

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Solution

The fourth proportional to 28,729.80, 43,077.06 and 11,179.20 is: 16,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729.80 : 43,077.06 = 11,179.20 : x
  2. Step 2: Convert to fraction form
    28,729.80/43,077.06 = 11,179.20/x
  3. Step 3: Cross multiply
    28,729.80x = 43,077.06 × 11,179.20
  4. Step 4: Simplify right side
    28,729.80x = 481,567,069.15
  5. Step 5: Solve for x
    x = 481,567,069.15/28,729.80
  6. Step 6: Final answer
    x = 16,761.94

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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.