Home / 34,128.75-51,216.17-11,942.32

Finding the Fourth Proportional to 34,128.75, 51,216.17 and 11,942.32

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Solution

The fourth proportional to 34,128.75, 51,216.17 and 11,942.32 is: 17,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,128.75 : 51,216.17 = 11,942.32 : x
  2. Step 2: Convert to fraction form
    34,128.75/51,216.17 = 11,942.32/x
  3. Step 3: Cross multiply
    34,128.75x = 51,216.17 × 11,942.32
  4. Step 4: Simplify right side
    34,128.75x = 611,639,900.36
  5. Step 5: Solve for x
    x = 611,639,900.36/34,128.75
  6. Step 6: Final answer
    x = 17,921.54

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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.