Home / 20,190.18-30,285.33-6,150.30

Finding the Fourth Proportional to 20,190.18, 30,285.33 and 6,150.30

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Solution

The fourth proportional to 20,190.18, 30,285.33 and 6,150.30 is: 9,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.18 : 30,285.33 = 6,150.30 : x
  2. Step 2: Convert to fraction form
    20,190.18/30,285.33 = 6,150.30/x
  3. Step 3: Cross multiply
    20,190.18x = 30,285.33 × 6,150.30
  4. Step 4: Simplify right side
    20,190.18x = 186,263,865.10
  5. Step 5: Solve for x
    x = 186,263,865.10/20,190.18
  6. Step 6: Final answer
    x = 9,225.47

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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.