Home / 17,121.90-25,682.61-5,435.22

Finding the Fourth Proportional to 17,121.90, 25,682.61 and 5,435.22

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Solution

The fourth proportional to 17,121.90, 25,682.61 and 5,435.22 is: 8,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.90 : 25,682.61 = 5,435.22 : x
  2. Step 2: Convert to fraction form
    17,121.90/25,682.61 = 5,435.22/x
  3. Step 3: Cross multiply
    17,121.90x = 25,682.61 × 5,435.22
  4. Step 4: Simplify right side
    17,121.90x = 139,590,635.52
  5. Step 5: Solve for x
    x = 139,590,635.52/17,121.90
  6. Step 6: Final answer
    x = 8,152.75

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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.