Home / 28,754.28-39,680.50-16,179

Finding the Fourth Proportional to 28,754.28, 39,680.50 and 16,179

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Solution

The fourth proportional to 28,754.28, 39,680.50 and 16,179 is: 22,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.28 : 39,680.50 = 16,179 : x
  2. Step 2: Convert to fraction form
    28,754.28/39,680.50 = 16,179/x
  3. Step 3: Cross multiply
    28,754.28x = 39,680.50 × 16,179
  4. Step 4: Simplify right side
    28,754.28x = 641,990,809.50
  5. Step 5: Solve for x
    x = 641,990,809.50/28,754.28
  6. Step 6: Final answer
    x = 22,326.79

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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.