Home / 20,498.54-30,728.59-11,124.82

Finding the Fourth Proportional to 20,498.54, 30,728.59 and 11,124.82

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Solution

The fourth proportional to 20,498.54, 30,728.59 and 11,124.82 is: 16,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.54 : 30,728.59 = 11,124.82 : x
  2. Step 2: Convert to fraction form
    20,498.54/30,728.59 = 11,124.82/x
  3. Step 3: Cross multiply
    20,498.54x = 30,728.59 × 11,124.82
  4. Step 4: Simplify right side
    20,498.54x = 341,850,032.60
  5. Step 5: Solve for x
    x = 341,850,032.60/20,498.54
  6. Step 6: Final answer
    x = 16,676.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.