Home / 20,533.11-30,813.30-7,385.46

Finding the Fourth Proportional to 20,533.11, 30,813.30 and 7,385.46

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Solution

The fourth proportional to 20,533.11, 30,813.30 and 7,385.46 is: 11,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.11 : 30,813.30 = 7,385.46 : x
  2. Step 2: Convert to fraction form
    20,533.11/30,813.30 = 7,385.46/x
  3. Step 3: Cross multiply
    20,533.11x = 30,813.30 × 7,385.46
  4. Step 4: Simplify right side
    20,533.11x = 227,570,394.62
  5. Step 5: Solve for x
    x = 227,570,394.62/20,533.11
  6. Step 6: Final answer
    x = 11,083.09

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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.