Home / 20,095.20-30,114-11,311.56

Finding the Fourth Proportional to 20,095.20, 30,114 and 11,311.56

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Solution

The fourth proportional to 20,095.20, 30,114 and 11,311.56 is: 16,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.20 : 30,114 = 11,311.56 : x
  2. Step 2: Convert to fraction form
    20,095.20/30,114 = 11,311.56/x
  3. Step 3: Cross multiply
    20,095.20x = 30,114 × 11,311.56
  4. Step 4: Simplify right side
    20,095.20x = 340,636,317.84
  5. Step 5: Solve for x
    x = 340,636,317.84/20,095.20
  6. Step 6: Final answer
    x = 16,951.13

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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.