Home / 18,728.80-28,069.68-16,383.28

Finding the Fourth Proportional to 18,728.80, 28,069.68 and 16,383.28

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Solution

The fourth proportional to 18,728.80, 28,069.68 and 16,383.28 is: 24,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.80 : 28,069.68 = 16,383.28 : x
  2. Step 2: Convert to fraction form
    18,728.80/28,069.68 = 16,383.28/x
  3. Step 3: Cross multiply
    18,728.80x = 28,069.68 × 16,383.28
  4. Step 4: Simplify right side
    18,728.80x = 459,873,426.95
  5. Step 5: Solve for x
    x = 459,873,426.95/18,728.80
  6. Step 6: Final answer
    x = 24,554.35

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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.