Home / 28,093.80-42,146.18-8,371.92

Finding the Fourth Proportional to 28,093.80, 42,146.18 and 8,371.92

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Solution

The fourth proportional to 28,093.80, 42,146.18 and 8,371.92 is: 12,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.80 : 42,146.18 = 8,371.92 : x
  2. Step 2: Convert to fraction form
    28,093.80/42,146.18 = 8,371.92/x
  3. Step 3: Cross multiply
    28,093.80x = 42,146.18 × 8,371.92
  4. Step 4: Simplify right side
    28,093.80x = 352,844,405.41
  5. Step 5: Solve for x
    x = 352,844,405.41/28,093.80
  6. Step 6: Final answer
    x = 12,559.51

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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.