Home / 28,717.19-43,076.60-7,940.69

Finding the Fourth Proportional to 28,717.19, 43,076.60 and 7,940.69

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Solution

The fourth proportional to 28,717.19, 43,076.60 and 7,940.69 is: 11,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.19 : 43,076.60 = 7,940.69 : x
  2. Step 2: Convert to fraction form
    28,717.19/43,076.60 = 7,940.69/x
  3. Step 3: Cross multiply
    28,717.19x = 43,076.60 × 7,940.69
  4. Step 4: Simplify right side
    28,717.19x = 342,057,671.77
  5. Step 5: Solve for x
    x = 342,057,671.77/28,717.19
  6. Step 6: Final answer
    x = 11,911.25

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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.