Home / 20,086.08-30,108.96-6,936

Finding the Fourth Proportional to 20,086.08, 30,108.96 and 6,936

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Solution

The fourth proportional to 20,086.08, 30,108.96 and 6,936 is: 10,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.08 : 30,108.96 = 6,936 : x
  2. Step 2: Convert to fraction form
    20,086.08/30,108.96 = 6,936/x
  3. Step 3: Cross multiply
    20,086.08x = 30,108.96 × 6,936
  4. Step 4: Simplify right side
    20,086.08x = 208,835,746.56
  5. Step 5: Solve for x
    x = 208,835,746.56/20,086.08
  6. Step 6: Final answer
    x = 10,397.04

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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.