Home / 28,683.88-39,579.46-16,106.20

Finding the Fourth Proportional to 28,683.88, 39,579.46 and 16,106.20

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Solution

The fourth proportional to 28,683.88, 39,579.46 and 16,106.20 is: 22,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.88 : 39,579.46 = 16,106.20 : x
  2. Step 2: Convert to fraction form
    28,683.88/39,579.46 = 16,106.20/x
  3. Step 3: Cross multiply
    28,683.88x = 39,579.46 × 16,106.20
  4. Step 4: Simplify right side
    28,683.88x = 637,474,698.65
  5. Step 5: Solve for x
    x = 637,474,698.65/28,683.88
  6. Step 6: Final answer
    x = 22,224.14

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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.