Home / 28,754.20-39,680.73-16,178.95

Finding the Fourth Proportional to 28,754.20, 39,680.73 and 16,178.95

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Solution

The fourth proportional to 28,754.20, 39,680.73 and 16,178.95 is: 22,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.20 : 39,680.73 = 16,178.95 : x
  2. Step 2: Convert to fraction form
    28,754.20/39,680.73 = 16,178.95/x
  3. Step 3: Cross multiply
    28,754.20x = 39,680.73 × 16,178.95
  4. Step 4: Simplify right side
    28,754.20x = 641,992,546.63
  5. Step 5: Solve for x
    x = 641,992,546.63/28,754.20
  6. Step 6: Final answer
    x = 22,326.91

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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.