Home / 28,840.32-39,800.16-16,912.26

Finding the Fourth Proportional to 28,840.32, 39,800.16 and 16,912.26

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Solution

The fourth proportional to 28,840.32, 39,800.16 and 16,912.26 is: 23,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.32 : 39,800.16 = 16,912.26 : x
  2. Step 2: Convert to fraction form
    28,840.32/39,800.16 = 16,912.26/x
  3. Step 3: Cross multiply
    28,840.32x = 39,800.16 × 16,912.26
  4. Step 4: Simplify right side
    28,840.32x = 673,110,653.96
  5. Step 5: Solve for x
    x = 673,110,653.96/28,840.32
  6. Step 6: Final answer
    x = 23,339.22

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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.