Home / 16,918.20-25,328.70-15,168.60

Finding the Fourth Proportional to 16,918.20, 25,328.70 and 15,168.60

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Solution

The fourth proportional to 16,918.20, 25,328.70 and 15,168.60 is: 22,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.20 : 25,328.70 = 15,168.60 : x
  2. Step 2: Convert to fraction form
    16,918.20/25,328.70 = 15,168.60/x
  3. Step 3: Cross multiply
    16,918.20x = 25,328.70 × 15,168.60
  4. Step 4: Simplify right side
    16,918.20x = 384,200,918.82
  5. Step 5: Solve for x
    x = 384,200,918.82/16,918.20
  6. Step 6: Final answer
    x = 22,709.33

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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.