Home / 39,504.15-54,515.73-21,599.15

Finding the Fourth Proportional to 39,504.15, 54,515.73 and 21,599.15

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Solution

The fourth proportional to 39,504.15, 54,515.73 and 21,599.15 is: 29,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,504.15 : 54,515.73 = 21,599.15 : x
  2. Step 2: Convert to fraction form
    39,504.15/54,515.73 = 21,599.15/x
  3. Step 3: Cross multiply
    39,504.15x = 54,515.73 × 21,599.15
  4. Step 4: Simplify right side
    39,504.15x = 1,177,493,457.92
  5. Step 5: Solve for x
    x = 1,177,493,457.92/39,504.15
  6. Step 6: Final answer
    x = 29,806.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.