Home / 25,819.62-35,642.88-19,849.20

Finding the Fourth Proportional to 25,819.62, 35,642.88 and 19,849.20

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Solution

The fourth proportional to 25,819.62, 35,642.88 and 19,849.20 is: 27,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,819.62 : 35,642.88 = 19,849.20 : x
  2. Step 2: Convert to fraction form
    25,819.62/35,642.88 = 19,849.20/x
  3. Step 3: Cross multiply
    25,819.62x = 35,642.88 × 19,849.20
  4. Step 4: Simplify right side
    25,819.62x = 707,482,653.70
  5. Step 5: Solve for x
    x = 707,482,653.70/25,819.62
  6. Step 6: Final answer
    x = 27,400.97

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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.