Home / 20,982.24-31,478.22-6,941.70

Finding the Fourth Proportional to 20,982.24, 31,478.22 and 6,941.70

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Solution

The fourth proportional to 20,982.24, 31,478.22 and 6,941.70 is: 10,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.24 : 31,478.22 = 6,941.70 : x
  2. Step 2: Convert to fraction form
    20,982.24/31,478.22 = 6,941.70/x
  3. Step 3: Cross multiply
    20,982.24x = 31,478.22 × 6,941.70
  4. Step 4: Simplify right side
    20,982.24x = 218,512,359.77
  5. Step 5: Solve for x
    x = 218,512,359.77/20,982.24
  6. Step 6: Final answer
    x = 10,414.16

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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.