Home / 18,165.32-25,107.54-16,765.64

Finding the Fourth Proportional to 18,165.32, 25,107.54 and 16,765.64

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Solution

The fourth proportional to 18,165.32, 25,107.54 and 16,765.64 is: 23,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.32 : 25,107.54 = 16,765.64 : x
  2. Step 2: Convert to fraction form
    18,165.32/25,107.54 = 16,765.64/x
  3. Step 3: Cross multiply
    18,165.32x = 25,107.54 × 16,765.64
  4. Step 4: Simplify right side
    18,165.32x = 420,943,976.93
  5. Step 5: Solve for x
    x = 420,943,976.93/18,165.32
  6. Step 6: Final answer
    x = 23,172.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.