Home / 28,334.66-42,503.09-8,612.73

Finding the Fourth Proportional to 28,334.66, 42,503.09 and 8,612.73

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Solution

The fourth proportional to 28,334.66, 42,503.09 and 8,612.73 is: 12,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.66 : 42,503.09 = 8,612.73 : x
  2. Step 2: Convert to fraction form
    28,334.66/42,503.09 = 8,612.73/x
  3. Step 3: Cross multiply
    28,334.66x = 42,503.09 × 8,612.73
  4. Step 4: Simplify right side
    28,334.66x = 366,067,595.27
  5. Step 5: Solve for x
    x = 366,067,595.27/28,334.66
  6. Step 6: Final answer
    x = 12,919.43

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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.