Home / 28,913.08-39,900.36-16,976.56

Finding the Fourth Proportional to 28,913.08, 39,900.36 and 16,976.56

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Solution

The fourth proportional to 28,913.08, 39,900.36 and 16,976.56 is: 23,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.08 : 39,900.36 = 16,976.56 : x
  2. Step 2: Convert to fraction form
    28,913.08/39,900.36 = 16,976.56/x
  3. Step 3: Cross multiply
    28,913.08x = 39,900.36 × 16,976.56
  4. Step 4: Simplify right side
    28,913.08x = 677,370,855.56
  5. Step 5: Solve for x
    x = 677,370,855.56/28,913.08
  6. Step 6: Final answer
    x = 23,427.83

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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.