Home / 28,874.75-39,847.16-15,626.75

Finding the Fourth Proportional to 28,874.75, 39,847.16 and 15,626.75

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Solution

The fourth proportional to 28,874.75, 39,847.16 and 15,626.75 is: 21,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.75 : 39,847.16 = 15,626.75 : x
  2. Step 2: Convert to fraction form
    28,874.75/39,847.16 = 15,626.75/x
  3. Step 3: Cross multiply
    28,874.75x = 39,847.16 × 15,626.75
  4. Step 4: Simplify right side
    28,874.75x = 622,681,529.40
  5. Step 5: Solve for x
    x = 622,681,529.40/28,874.75
  6. Step 6: Final answer
    x = 21,564.92

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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.