Home / 20,507.28-30,763.49-8,025.69

Finding the Fourth Proportional to 20,507.28, 30,763.49 and 8,025.69

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Solution

The fourth proportional to 20,507.28, 30,763.49 and 8,025.69 is: 12,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.28 : 30,763.49 = 8,025.69 : x
  2. Step 2: Convert to fraction form
    20,507.28/30,763.49 = 8,025.69/x
  3. Step 3: Cross multiply
    20,507.28x = 30,763.49 × 8,025.69
  4. Step 4: Simplify right side
    20,507.28x = 246,898,222.77
  5. Step 5: Solve for x
    x = 246,898,222.77/20,507.28
  6. Step 6: Final answer
    x = 12,039.54

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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.