Home / 28,933.06-43,400.40-9,212.80

Finding the Fourth Proportional to 28,933.06, 43,400.40 and 9,212.80

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Solution

The fourth proportional to 28,933.06, 43,400.40 and 9,212.80 is: 13,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.06 : 43,400.40 = 9,212.80 : x
  2. Step 2: Convert to fraction form
    28,933.06/43,400.40 = 9,212.80/x
  3. Step 3: Cross multiply
    28,933.06x = 43,400.40 × 9,212.80
  4. Step 4: Simplify right side
    28,933.06x = 399,839,205.12
  5. Step 5: Solve for x
    x = 399,839,205.12/28,933.06
  6. Step 6: Final answer
    x = 13,819.46

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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.