Home / 20,624.49-28,462.22-11,671.99

Finding the Fourth Proportional to 20,624.49, 28,462.22 and 11,671.99

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Solution

The fourth proportional to 20,624.49, 28,462.22 and 11,671.99 is: 16,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.49 : 28,462.22 = 11,671.99 : x
  2. Step 2: Convert to fraction form
    20,624.49/28,462.22 = 11,671.99/x
  3. Step 3: Cross multiply
    20,624.49x = 28,462.22 × 11,671.99
  4. Step 4: Simplify right side
    20,624.49x = 332,210,747.22
  5. Step 5: Solve for x
    x = 332,210,747.22/20,624.49
  6. Step 6: Final answer
    x = 16,107.59

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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.