Home / 20,585.33-28,407.38-11,632.64

Finding the Fourth Proportional to 20,585.33, 28,407.38 and 11,632.64

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Solution

The fourth proportional to 20,585.33, 28,407.38 and 11,632.64 is: 16,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.33 : 28,407.38 = 11,632.64 : x
  2. Step 2: Convert to fraction form
    20,585.33/28,407.38 = 11,632.64/x
  3. Step 3: Cross multiply
    20,585.33x = 28,407.38 × 11,632.64
  4. Step 4: Simplify right side
    20,585.33x = 330,452,766.72
  5. Step 5: Solve for x
    x = 330,452,766.72/20,585.33
  6. Step 6: Final answer
    x = 16,052.83

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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.