Home / 22,448.91-30,979.35-12,239.94

Finding the Fourth Proportional to 22,448.91, 30,979.35 and 12,239.94

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Solution

The fourth proportional to 22,448.91, 30,979.35 and 12,239.94 is: 16,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,448.91 : 30,979.35 = 12,239.94 : x
  2. Step 2: Convert to fraction form
    22,448.91/30,979.35 = 12,239.94/x
  3. Step 3: Cross multiply
    22,448.91x = 30,979.35 × 12,239.94
  4. Step 4: Simplify right side
    22,448.91x = 379,185,385.24
  5. Step 5: Solve for x
    x = 379,185,385.24/22,448.91
  6. Step 6: Final answer
    x = 16,891.04

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1.5x scale

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.