Home / 28,125.60-42,196.86-8,404.80

Finding the Fourth Proportional to 28,125.60, 42,196.86 and 8,404.80

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Solution

The fourth proportional to 28,125.60, 42,196.86 and 8,404.80 is: 12,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.60 : 42,196.86 = 8,404.80 : x
  2. Step 2: Convert to fraction form
    28,125.60/42,196.86 = 8,404.80/x
  3. Step 3: Cross multiply
    28,125.60x = 42,196.86 × 8,404.80
  4. Step 4: Simplify right side
    28,125.60x = 354,656,168.93
  5. Step 5: Solve for x
    x = 354,656,168.93/28,125.60
  6. Step 6: Final answer
    x = 12,609.73

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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.