Home / 20,984.46-31,476.09-9,884.82

Finding the Fourth Proportional to 20,984.46, 31,476.09 and 9,884.82

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Solution

The fourth proportional to 20,984.46, 31,476.09 and 9,884.82 is: 14,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.46 : 31,476.09 = 9,884.82 : x
  2. Step 2: Convert to fraction form
    20,984.46/31,476.09 = 9,884.82/x
  3. Step 3: Cross multiply
    20,984.46x = 31,476.09 × 9,884.82
  4. Step 4: Simplify right side
    20,984.46x = 311,135,483.95
  5. Step 5: Solve for x
    x = 311,135,483.95/20,984.46
  6. Step 6: Final answer
    x = 14,826.95

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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.