Home / 20,849.08-28,764.52-11,890.12

Finding the Fourth Proportional to 20,849.08, 28,764.52 and 11,890.12

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Solution

The fourth proportional to 20,849.08, 28,764.52 and 11,890.12 is: 16,404.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.08 : 28,764.52 = 11,890.12 : x
  2. Step 2: Convert to fraction form
    20,849.08/28,764.52 = 11,890.12/x
  3. Step 3: Cross multiply
    20,849.08x = 28,764.52 × 11,890.12
  4. Step 4: Simplify right side
    20,849.08x = 342,013,594.54
  5. Step 5: Solve for x
    x = 342,013,594.54/20,849.08
  6. Step 6: Final answer
    x = 16,404.25

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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.