Home / 18,667.30-28,000.60-4,627.36

Finding the Fourth Proportional to 18,667.30, 28,000.60 and 4,627.36

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Solution

The fourth proportional to 18,667.30, 28,000.60 and 4,627.36 is: 6,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.30 : 28,000.60 = 4,627.36 : x
  2. Step 2: Convert to fraction form
    18,667.30/28,000.60 = 4,627.36/x
  3. Step 3: Cross multiply
    18,667.30x = 28,000.60 × 4,627.36
  4. Step 4: Simplify right side
    18,667.30x = 129,568,774.85
  5. Step 5: Solve for x
    x = 129,568,774.85/18,667.30
  6. Step 6: Final answer
    x = 6,940.95

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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.