Home / 28,195.06-38,891.58-18,136.61

Finding the Fourth Proportional to 28,195.06, 38,891.58 and 18,136.61

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Solution

The fourth proportional to 28,195.06, 38,891.58 and 18,136.61 is: 25,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.06 : 38,891.58 = 18,136.61 : x
  2. Step 2: Convert to fraction form
    28,195.06/38,891.58 = 18,136.61/x
  3. Step 3: Cross multiply
    28,195.06x = 38,891.58 × 18,136.61
  4. Step 4: Simplify right side
    28,195.06x = 705,361,418.74
  5. Step 5: Solve for x
    x = 705,361,418.74/28,195.06
  6. Step 6: Final answer
    x = 25,017.20

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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.