Home / 17,286.24-25,880.40-13,435.68

Finding the Fourth Proportional to 17,286.24, 25,880.40 and 13,435.68

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Solution

The fourth proportional to 17,286.24, 25,880.40 and 13,435.68 is: 20,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,286.24 : 25,880.40 = 13,435.68 : x
  2. Step 2: Convert to fraction form
    17,286.24/25,880.40 = 13,435.68/x
  3. Step 3: Cross multiply
    17,286.24x = 25,880.40 × 13,435.68
  4. Step 4: Simplify right side
    17,286.24x = 347,720,772.67
  5. Step 5: Solve for x
    x = 347,720,772.67/17,286.24
  6. Step 6: Final answer
    x = 20,115.47

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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.