Home / 20,190.06-30,285.21-7,042.44

Finding the Fourth Proportional to 20,190.06, 30,285.21 and 7,042.44

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Solution

The fourth proportional to 20,190.06, 30,285.21 and 7,042.44 is: 10,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.06 : 30,285.21 = 7,042.44 : x
  2. Step 2: Convert to fraction form
    20,190.06/30,285.21 = 7,042.44/x
  3. Step 3: Cross multiply
    20,190.06x = 30,285.21 × 7,042.44
  4. Step 4: Simplify right side
    20,190.06x = 213,281,774.31
  5. Step 5: Solve for x
    x = 213,281,774.31/20,190.06
  6. Step 6: Final answer
    x = 10,563.70

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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.