Home / 28,851.85-43,270.35-11,321.83

Finding the Fourth Proportional to 28,851.85, 43,270.35 and 11,321.83

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Solution

The fourth proportional to 28,851.85, 43,270.35 and 11,321.83 is: 16,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.85 : 43,270.35 = 11,321.83 : x
  2. Step 2: Convert to fraction form
    28,851.85/43,270.35 = 11,321.83/x
  3. Step 3: Cross multiply
    28,851.85x = 43,270.35 × 11,321.83
  4. Step 4: Simplify right side
    28,851.85x = 489,899,546.74
  5. Step 5: Solve for x
    x = 489,899,546.74/28,851.85
  6. Step 6: Final answer
    x = 16,979.83

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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.