Home / 28,928.68-39,919.50-16,181.19

Finding the Fourth Proportional to 28,928.68, 39,919.50 and 16,181.19

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Solution

The fourth proportional to 28,928.68, 39,919.50 and 16,181.19 is: 22,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.68 : 39,919.50 = 16,181.19 : x
  2. Step 2: Convert to fraction form
    28,928.68/39,919.50 = 16,181.19/x
  3. Step 3: Cross multiply
    28,928.68x = 39,919.50 × 16,181.19
  4. Step 4: Simplify right side
    28,928.68x = 645,945,014.21
  5. Step 5: Solve for x
    x = 645,945,014.21/28,928.68
  6. Step 6: Final answer
    x = 22,328.88

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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.