Home / 26,880.20-40,265.40-12,797.60

Finding the Fourth Proportional to 26,880.20, 40,265.40 and 12,797.60

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Solution

The fourth proportional to 26,880.20, 40,265.40 and 12,797.60 is: 19,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880.20 : 40,265.40 = 12,797.60 : x
  2. Step 2: Convert to fraction form
    26,880.20/40,265.40 = 12,797.60/x
  3. Step 3: Cross multiply
    26,880.20x = 40,265.40 × 12,797.60
  4. Step 4: Simplify right side
    26,880.20x = 515,300,483.04
  5. Step 5: Solve for x
    x = 515,300,483.04/26,880.20
  6. Step 6: Final answer
    x = 19,170.26

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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.