Home / 20,186.21-30,276.96-5,396.28

Finding the Fourth Proportional to 20,186.21, 30,276.96 and 5,396.28

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Solution

The fourth proportional to 20,186.21, 30,276.96 and 5,396.28 is: 8,093.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.21 : 30,276.96 = 5,396.28 : x
  2. Step 2: Convert to fraction form
    20,186.21/30,276.96 = 5,396.28/x
  3. Step 3: Cross multiply
    20,186.21x = 30,276.96 × 5,396.28
  4. Step 4: Simplify right side
    20,186.21x = 163,382,953.71
  5. Step 5: Solve for x
    x = 163,382,953.71/20,186.21
  6. Step 6: Final answer
    x = 8,093.79

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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.