Home / 28,536.75-42,806.34-7,760.25

Finding the Fourth Proportional to 28,536.75, 42,806.34 and 7,760.25

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Solution

The fourth proportional to 28,536.75, 42,806.34 and 7,760.25 is: 11,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.75 : 42,806.34 = 7,760.25 : x
  2. Step 2: Convert to fraction form
    28,536.75/42,806.34 = 7,760.25/x
  3. Step 3: Cross multiply
    28,536.75x = 42,806.34 × 7,760.25
  4. Step 4: Simplify right side
    28,536.75x = 332,187,899.99
  5. Step 5: Solve for x
    x = 332,187,899.99/28,536.75
  6. Step 6: Final answer
    x = 11,640.71

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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.