Home / 28,286.48-42,418.16-12,277.04

Finding the Fourth Proportional to 28,286.48, 42,418.16 and 12,277.04

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Solution

The fourth proportional to 28,286.48, 42,418.16 and 12,277.04 is: 18,410.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.48 : 42,418.16 = 12,277.04 : x
  2. Step 2: Convert to fraction form
    28,286.48/42,418.16 = 12,277.04/x
  3. Step 3: Cross multiply
    28,286.48x = 42,418.16 × 12,277.04
  4. Step 4: Simplify right side
    28,286.48x = 520,769,447.05
  5. Step 5: Solve for x
    x = 520,769,447.05/28,286.48
  6. Step 6: Final answer
    x = 18,410.54

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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.