Home / 28,735.09-43,102.72-8,744.78

Finding the Fourth Proportional to 28,735.09, 43,102.72 and 8,744.78

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Solution

The fourth proportional to 28,735.09, 43,102.72 and 8,744.78 is: 13,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.09 : 43,102.72 = 8,744.78 : x
  2. Step 2: Convert to fraction form
    28,735.09/43,102.72 = 8,744.78/x
  3. Step 3: Cross multiply
    28,735.09x = 43,102.72 × 8,744.78
  4. Step 4: Simplify right side
    28,735.09x = 376,923,630.85
  5. Step 5: Solve for x
    x = 376,923,630.85/28,735.09
  6. Step 6: Final answer
    x = 13,117.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.