Home / 20,285.30-30,428.01-6,245.24

Finding the Fourth Proportional to 20,285.30, 30,428.01 and 6,245.24

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Solution

The fourth proportional to 20,285.30, 30,428.01 and 6,245.24 is: 9,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.30 : 30,428.01 = 6,245.24 : x
  2. Step 2: Convert to fraction form
    20,285.30/30,428.01 = 6,245.24/x
  3. Step 3: Cross multiply
    20,285.30x = 30,428.01 × 6,245.24
  4. Step 4: Simplify right side
    20,285.30x = 190,030,073.03
  5. Step 5: Solve for x
    x = 190,030,073.03/20,285.30
  6. Step 6: Final answer
    x = 9,367.87

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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.