Home / 28,166.75-42,291.66-15,711.11

Finding the Fourth Proportional to 28,166.75, 42,291.66 and 15,711.11

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Solution

The fourth proportional to 28,166.75, 42,291.66 and 15,711.11 is: 23,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.75 : 42,291.66 = 15,711.11 : x
  2. Step 2: Convert to fraction form
    28,166.75/42,291.66 = 15,711.11/x
  3. Step 3: Cross multiply
    28,166.75x = 42,291.66 × 15,711.11
  4. Step 4: Simplify right side
    28,166.75x = 664,448,922.34
  5. Step 5: Solve for x
    x = 664,448,922.34/28,166.75
  6. Step 6: Final answer
    x = 23,589.83

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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.