Home / 20,296.37-30,444.20-7,819.10

Finding the Fourth Proportional to 20,296.37, 30,444.20 and 7,819.10

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Solution

The fourth proportional to 20,296.37, 30,444.20 and 7,819.10 is: 11,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.37 : 30,444.20 = 7,819.10 : x
  2. Step 2: Convert to fraction form
    20,296.37/30,444.20 = 7,819.10/x
  3. Step 3: Cross multiply
    20,296.37x = 30,444.20 × 7,819.10
  4. Step 4: Simplify right side
    20,296.37x = 238,046,205.12
  5. Step 5: Solve for x
    x = 238,046,205.12/20,296.37
  6. Step 6: Final answer
    x = 11,728.51

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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.