Home / 28,588.93-39,451.26-15,841.78

Finding the Fourth Proportional to 28,588.93, 39,451.26 and 15,841.78

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Solution

The fourth proportional to 28,588.93, 39,451.26 and 15,841.78 is: 21,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.93 : 39,451.26 = 15,841.78 : x
  2. Step 2: Convert to fraction form
    28,588.93/39,451.26 = 15,841.78/x
  3. Step 3: Cross multiply
    28,588.93x = 39,451.26 × 15,841.78
  4. Step 4: Simplify right side
    28,588.93x = 624,978,181.64
  5. Step 5: Solve for x
    x = 624,978,181.64/28,588.93
  6. Step 6: Final answer
    x = 21,860.85

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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.