Home / 20,437.32-30,634.20-11,653.32

Finding the Fourth Proportional to 20,437.32, 30,634.20 and 11,653.32

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Solution

The fourth proportional to 20,437.32, 30,634.20 and 11,653.32 is: 17,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.32 : 30,634.20 = 11,653.32 : x
  2. Step 2: Convert to fraction form
    20,437.32/30,634.20 = 11,653.32/x
  3. Step 3: Cross multiply
    20,437.32x = 30,634.20 × 11,653.32
  4. Step 4: Simplify right side
    20,437.32x = 356,990,135.54
  5. Step 5: Solve for x
    x = 356,990,135.54/20,437.32
  6. Step 6: Final answer
    x = 17,467.56

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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.