Home / 20,613.08-28,469.27-13,926.33

Finding the Fourth Proportional to 20,613.08, 28,469.27 and 13,926.33

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Solution

The fourth proportional to 20,613.08, 28,469.27 and 13,926.33 is: 19,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,613.08 : 28,469.27 = 13,926.33 : x
  2. Step 2: Convert to fraction form
    20,613.08/28,469.27 = 13,926.33/x
  3. Step 3: Cross multiply
    20,613.08x = 28,469.27 × 13,926.33
  4. Step 4: Simplify right side
    20,613.08x = 396,472,483.69
  5. Step 5: Solve for x
    x = 396,472,483.69/20,613.08
  6. Step 6: Final answer
    x = 19,234.02

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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.