Home / 18,491.18-25,517.99-17,078.52

Finding the Fourth Proportional to 18,491.18, 25,517.99 and 17,078.52

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Solution

The fourth proportional to 18,491.18, 25,517.99 and 17,078.52 is: 23,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.18 : 25,517.99 = 17,078.52 : x
  2. Step 2: Convert to fraction form
    18,491.18/25,517.99 = 17,078.52/x
  3. Step 3: Cross multiply
    18,491.18x = 25,517.99 × 17,078.52
  4. Step 4: Simplify right side
    18,491.18x = 435,809,502.57
  5. Step 5: Solve for x
    x = 435,809,502.57/18,491.18
  6. Step 6: Final answer
    x = 23,568.51

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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.