Home / 26,880.80-40,311.60-9,351.20

Finding the Fourth Proportional to 26,880.80, 40,311.60 and 9,351.20

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Solution

The fourth proportional to 26,880.80, 40,311.60 and 9,351.20 is: 14,023.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880.80 : 40,311.60 = 9,351.20 : x
  2. Step 2: Convert to fraction form
    26,880.80/40,311.60 = 9,351.20/x
  3. Step 3: Cross multiply
    26,880.80x = 40,311.60 × 9,351.20
  4. Step 4: Simplify right side
    26,880.80x = 376,961,833.92
  5. Step 5: Solve for x
    x = 376,961,833.92/26,880.80
  6. Step 6: Final answer
    x = 14,023.46

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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.