Home / 20,930.08-28,883.50-11,498.64

Finding the Fourth Proportional to 20,930.08, 28,883.50 and 11,498.64

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Solution

The fourth proportional to 20,930.08, 28,883.50 and 11,498.64 is: 15,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,930.08 : 28,883.50 = 11,498.64 : x
  2. Step 2: Convert to fraction form
    20,930.08/28,883.50 = 11,498.64/x
  3. Step 3: Cross multiply
    20,930.08x = 28,883.50 × 11,498.64
  4. Step 4: Simplify right side
    20,930.08x = 332,120,968.44
  5. Step 5: Solve for x
    x = 332,120,968.44/20,930.08
  6. Step 6: Final answer
    x = 15,868.12

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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.