Home / 20,377.46-30,570.80-7,229.85

Finding the Fourth Proportional to 20,377.46, 30,570.80 and 7,229.85

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Solution

The fourth proportional to 20,377.46, 30,570.80 and 7,229.85 is: 10,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.46 : 30,570.80 = 7,229.85 : x
  2. Step 2: Convert to fraction form
    20,377.46/30,570.80 = 7,229.85/x
  3. Step 3: Cross multiply
    20,377.46x = 30,570.80 × 7,229.85
  4. Step 4: Simplify right side
    20,377.46x = 221,022,298.38
  5. Step 5: Solve for x
    x = 221,022,298.38/20,377.46
  6. Step 6: Final answer
    x = 10,846.41

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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.