Home / 28,647.97-39,533.58-15,900.41

Finding the Fourth Proportional to 28,647.97, 39,533.58 and 15,900.41

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Solution

The fourth proportional to 28,647.97, 39,533.58 and 15,900.41 is: 21,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.97 : 39,533.58 = 15,900.41 : x
  2. Step 2: Convert to fraction form
    28,647.97/39,533.58 = 15,900.41/x
  3. Step 3: Cross multiply
    28,647.97x = 39,533.58 × 15,900.41
  4. Step 4: Simplify right side
    28,647.97x = 628,599,933.10
  5. Step 5: Solve for x
    x = 628,599,933.10/28,647.97
  6. Step 6: Final answer
    x = 21,942.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.