Home / 20,276.57-30,414.76-5,485.43

Finding the Fourth Proportional to 20,276.57, 30,414.76 and 5,485.43

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Solution

The fourth proportional to 20,276.57, 30,414.76 and 5,485.43 is: 8,228.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.57 : 30,414.76 = 5,485.43 : x
  2. Step 2: Convert to fraction form
    20,276.57/30,414.76 = 5,485.43/x
  3. Step 3: Cross multiply
    20,276.57x = 30,414.76 × 5,485.43
  4. Step 4: Simplify right side
    20,276.57x = 166,838,099.27
  5. Step 5: Solve for x
    x = 166,838,099.27/20,276.57
  6. Step 6: Final answer
    x = 8,228.12

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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.