Home / 20,835.66-31,253.64-6,984.66

Finding the Fourth Proportional to 20,835.66, 31,253.64 and 6,984.66

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Solution

The fourth proportional to 20,835.66, 31,253.64 and 6,984.66 is: 10,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.66 : 31,253.64 = 6,984.66 : x
  2. Step 2: Convert to fraction form
    20,835.66/31,253.64 = 6,984.66/x
  3. Step 3: Cross multiply
    20,835.66x = 31,253.64 × 6,984.66
  4. Step 4: Simplify right side
    20,835.66x = 218,296,049.16
  5. Step 5: Solve for x
    x = 218,296,049.16/20,835.66
  6. Step 6: Final answer
    x = 10,477.04

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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.