Home / 20,388.44-30,533.27-10,366.82

Finding the Fourth Proportional to 20,388.44, 30,533.27 and 10,366.82

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Solution

The fourth proportional to 20,388.44, 30,533.27 and 10,366.82 is: 15,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.44 : 30,533.27 = 10,366.82 : x
  2. Step 2: Convert to fraction form
    20,388.44/30,533.27 = 10,366.82/x
  3. Step 3: Cross multiply
    20,388.44x = 30,533.27 × 10,366.82
  4. Step 4: Simplify right side
    20,388.44x = 316,532,709.60
  5. Step 5: Solve for x
    x = 316,532,709.60/20,388.44
  6. Step 6: Final answer
    x = 15,525.11

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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.