Home / 20,650.95-28,498.67-11,698.23

Finding the Fourth Proportional to 20,650.95, 28,498.67 and 11,698.23

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Solution

The fourth proportional to 20,650.95, 28,498.67 and 11,698.23 is: 16,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.95 : 28,498.67 = 11,698.23 : x
  2. Step 2: Convert to fraction form
    20,650.95/28,498.67 = 11,698.23/x
  3. Step 3: Cross multiply
    20,650.95x = 28,498.67 × 11,698.23
  4. Step 4: Simplify right side
    20,650.95x = 333,383,937.86
  5. Step 5: Solve for x
    x = 333,383,937.86/20,650.95
  6. Step 6: Final answer
    x = 16,143.76

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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.