Home / 20,189.94-30,288.36-6,861.52

Finding the Fourth Proportional to 20,189.94, 30,288.36 and 6,861.52

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Solution

The fourth proportional to 20,189.94, 30,288.36 and 6,861.52 is: 10,293.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.94 : 30,288.36 = 6,861.52 : x
  2. Step 2: Convert to fraction form
    20,189.94/30,288.36 = 6,861.52/x
  3. Step 3: Cross multiply
    20,189.94x = 30,288.36 × 6,861.52
  4. Step 4: Simplify right side
    20,189.94x = 207,824,187.91
  5. Step 5: Solve for x
    x = 207,824,187.91/20,189.94
  6. Step 6: Final answer
    x = 10,293.46

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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.