Home / 28,900.22-43,351.83-9,180.32

Finding the Fourth Proportional to 28,900.22, 43,351.83 and 9,180.32

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Solution

The fourth proportional to 28,900.22, 43,351.83 and 9,180.32 is: 13,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.22 : 43,351.83 = 9,180.32 : x
  2. Step 2: Convert to fraction form
    28,900.22/43,351.83 = 9,180.32/x
  3. Step 3: Cross multiply
    28,900.22x = 43,351.83 × 9,180.32
  4. Step 4: Simplify right side
    28,900.22x = 397,983,671.99
  5. Step 5: Solve for x
    x = 397,983,671.99/28,900.22
  6. Step 6: Final answer
    x = 13,770.96

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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.