Home / 28,683.56-39,584.49-15,936.68

Finding the Fourth Proportional to 28,683.56, 39,584.49 and 15,936.68

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Solution

The fourth proportional to 28,683.56, 39,584.49 and 15,936.68 is: 21,993.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.56 : 39,584.49 = 15,936.68 : x
  2. Step 2: Convert to fraction form
    28,683.56/39,584.49 = 15,936.68/x
  3. Step 3: Cross multiply
    28,683.56x = 39,584.49 × 15,936.68
  4. Step 4: Simplify right side
    28,683.56x = 630,845,152.17
  5. Step 5: Solve for x
    x = 630,845,152.17/28,683.56
  6. Step 6: Final answer
    x = 21,993.27

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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.