Home / 20,366.84-28,108.05-11,868.50

Finding the Fourth Proportional to 20,366.84, 28,108.05 and 11,868.50

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Solution

The fourth proportional to 20,366.84, 28,108.05 and 11,868.50 is: 16,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.84 : 28,108.05 = 11,868.50 : x
  2. Step 2: Convert to fraction form
    20,366.84/28,108.05 = 11,868.50/x
  3. Step 3: Cross multiply
    20,366.84x = 28,108.05 × 11,868.50
  4. Step 4: Simplify right side
    20,366.84x = 333,600,391.43
  5. Step 5: Solve for x
    x = 333,600,391.43/20,366.84
  6. Step 6: Final answer
    x = 16,379.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.