Home / 28,811.16-39,757.86-18,584.28

Finding the Fourth Proportional to 28,811.16, 39,757.86 and 18,584.28

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Solution

The fourth proportional to 28,811.16, 39,757.86 and 18,584.28 is: 25,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.16 : 39,757.86 = 18,584.28 : x
  2. Step 2: Convert to fraction form
    28,811.16/39,757.86 = 18,584.28/x
  3. Step 3: Cross multiply
    28,811.16x = 39,757.86 × 18,584.28
  4. Step 4: Simplify right side
    28,811.16x = 738,871,202.44
  5. Step 5: Solve for x
    x = 738,871,202.44/28,811.16
  6. Step 6: Final answer
    x = 25,645.31

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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.