Home / 28,847.70-39,810.34-16,919.64

Finding the Fourth Proportional to 28,847.70, 39,810.34 and 16,919.64

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Solution

The fourth proportional to 28,847.70, 39,810.34 and 16,919.64 is: 23,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.70 : 39,810.34 = 16,919.64 : x
  2. Step 2: Convert to fraction form
    28,847.70/39,810.34 = 16,919.64/x
  3. Step 3: Cross multiply
    28,847.70x = 39,810.34 × 16,919.64
  4. Step 4: Simplify right side
    28,847.70x = 673,576,621.08
  5. Step 5: Solve for x
    x = 673,576,621.08/28,847.70
  6. Step 6: Final answer
    x = 23,349.40

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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.