Home / 20,134.68-30,202.32-6,987.47

Finding the Fourth Proportional to 20,134.68, 30,202.32 and 6,987.47

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Solution

The fourth proportional to 20,134.68, 30,202.32 and 6,987.47 is: 10,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.68 : 30,202.32 = 6,987.47 : x
  2. Step 2: Convert to fraction form
    20,134.68/30,202.32 = 6,987.47/x
  3. Step 3: Cross multiply
    20,134.68x = 30,202.32 × 6,987.47
  4. Step 4: Simplify right side
    20,134.68x = 211,037,653.92
  5. Step 5: Solve for x
    x = 211,037,653.92/20,134.68
  6. Step 6: Final answer
    x = 10,481.30

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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.