Home / 34,245.87-47,273.85-20,821.41

Finding the Fourth Proportional to 34,245.87, 47,273.85 and 20,821.41

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Solution

The fourth proportional to 34,245.87, 47,273.85 and 20,821.41 is: 28,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,245.87 : 47,273.85 = 20,821.41 : x
  2. Step 2: Convert to fraction form
    34,245.87/47,273.85 = 20,821.41/x
  3. Step 3: Cross multiply
    34,245.87x = 47,273.85 × 20,821.41
  4. Step 4: Simplify right side
    34,245.87x = 984,308,404.65
  5. Step 5: Solve for x
    x = 984,308,404.65/34,245.87
  6. Step 6: Final answer
    x = 28,742.40

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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.