Home / 20,624.63-28,462.66-11,671.97

Finding the Fourth Proportional to 20,624.63, 28,462.66 and 11,671.97

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Solution

The fourth proportional to 20,624.63, 28,462.66 and 11,671.97 is: 16,107.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.63 : 28,462.66 = 11,671.97 : x
  2. Step 2: Convert to fraction form
    20,624.63/28,462.66 = 11,671.97/x
  3. Step 3: Cross multiply
    20,624.63x = 28,462.66 × 11,671.97
  4. Step 4: Simplify right side
    20,624.63x = 332,215,142.15
  5. Step 5: Solve for x
    x = 332,215,142.15/20,624.63
  6. Step 6: Final answer
    x = 16,107.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.