Home / 28,900.44-39,902.24-18,716.09

Finding the Fourth Proportional to 28,900.44, 39,902.24 and 18,716.09

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Solution

The fourth proportional to 28,900.44, 39,902.24 and 18,716.09 is: 25,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.44 : 39,902.24 = 18,716.09 : x
  2. Step 2: Convert to fraction form
    28,900.44/39,902.24 = 18,716.09/x
  3. Step 3: Cross multiply
    28,900.44x = 39,902.24 × 18,716.09
  4. Step 4: Simplify right side
    28,900.44x = 746,813,762.32
  5. Step 5: Solve for x
    x = 746,813,762.32/28,900.44
  6. Step 6: Final answer
    x = 25,840.91

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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.