Home / 20,567.62-28,383.19-11,618.02

Finding the Fourth Proportional to 20,567.62, 28,383.19 and 11,618.02

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Solution

The fourth proportional to 20,567.62, 28,383.19 and 11,618.02 is: 16,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.62 : 28,383.19 = 11,618.02 : x
  2. Step 2: Convert to fraction form
    20,567.62/28,383.19 = 11,618.02/x
  3. Step 3: Cross multiply
    20,567.62x = 28,383.19 × 11,618.02
  4. Step 4: Simplify right side
    20,567.62x = 329,756,469.08
  5. Step 5: Solve for x
    x = 329,756,469.08/20,567.62
  6. Step 6: Final answer
    x = 16,032.80

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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.