Home / 20,539.76-30,813.96-6,698.48

Finding the Fourth Proportional to 20,539.76, 30,813.96 and 6,698.48

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Solution

The fourth proportional to 20,539.76, 30,813.96 and 6,698.48 is: 10,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.76 : 30,813.96 = 6,698.48 : x
  2. Step 2: Convert to fraction form
    20,539.76/30,813.96 = 6,698.48/x
  3. Step 3: Cross multiply
    20,539.76x = 30,813.96 × 6,698.48
  4. Step 4: Simplify right side
    20,539.76x = 206,406,694.78
  5. Step 5: Solve for x
    x = 206,406,694.78/20,539.76
  6. Step 6: Final answer
    x = 10,049.13

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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.