Home / 20,608.83-30,891.38-11,248.47

Finding the Fourth Proportional to 20,608.83, 30,891.38 and 11,248.47

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Solution

The fourth proportional to 20,608.83, 30,891.38 and 11,248.47 is: 16,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.83 : 30,891.38 = 11,248.47 : x
  2. Step 2: Convert to fraction form
    20,608.83/30,891.38 = 11,248.47/x
  3. Step 3: Cross multiply
    20,608.83x = 30,891.38 × 11,248.47
  4. Step 4: Simplify right side
    20,608.83x = 347,480,704.95
  5. Step 5: Solve for x
    x = 347,480,704.95/20,608.83
  6. Step 6: Final answer
    x = 16,860.77

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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.