Home / 20,273.74-30,390.27-8,411.38

Finding the Fourth Proportional to 20,273.74, 30,390.27 and 8,411.38

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Solution

The fourth proportional to 20,273.74, 30,390.27 and 8,411.38 is: 12,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.74 : 30,390.27 = 8,411.38 : x
  2. Step 2: Convert to fraction form
    20,273.74/30,390.27 = 8,411.38/x
  3. Step 3: Cross multiply
    20,273.74x = 30,390.27 × 8,411.38
  4. Step 4: Simplify right side
    20,273.74x = 255,624,109.27
  5. Step 5: Solve for x
    x = 255,624,109.27/20,273.74
  6. Step 6: Final answer
    x = 12,608.63

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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.