Home / 28,068.14-38,780.52-22,144.88

Finding the Fourth Proportional to 28,068.14, 38,780.52 and 22,144.88

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Solution

The fourth proportional to 28,068.14, 38,780.52 and 22,144.88 is: 30,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.14 : 38,780.52 = 22,144.88 : x
  2. Step 2: Convert to fraction form
    28,068.14/38,780.52 = 22,144.88/x
  3. Step 3: Cross multiply
    28,068.14x = 38,780.52 × 22,144.88
  4. Step 4: Simplify right side
    28,068.14x = 858,789,961.74
  5. Step 5: Solve for x
    x = 858,789,961.74/28,068.14
  6. Step 6: Final answer
    x = 30,596.61

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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.