Home / 20,336.67-28,118.16-17,811.54

Finding the Fourth Proportional to 20,336.67, 28,118.16 and 17,811.54

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Solution

The fourth proportional to 20,336.67, 28,118.16 and 17,811.54 is: 24,626.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.67 : 28,118.16 = 17,811.54 : x
  2. Step 2: Convert to fraction form
    20,336.67/28,118.16 = 17,811.54/x
  3. Step 3: Cross multiply
    20,336.67x = 28,118.16 × 17,811.54
  4. Step 4: Simplify right side
    20,336.67x = 500,827,801.86
  5. Step 5: Solve for x
    x = 500,827,801.86/20,336.67
  6. Step 6: Final answer
    x = 24,626.83

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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.