Home / 19,175.88-28,765.38-5,324.88

Finding the Fourth Proportional to 19,175.88, 28,765.38 and 5,324.88

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Solution

The fourth proportional to 19,175.88, 28,765.38 and 5,324.88 is: 7,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.88 : 28,765.38 = 5,324.88 : x
  2. Step 2: Convert to fraction form
    19,175.88/28,765.38 = 5,324.88/x
  3. Step 3: Cross multiply
    19,175.88x = 28,765.38 × 5,324.88
  4. Step 4: Simplify right side
    19,175.88x = 153,172,196.65
  5. Step 5: Solve for x
    x = 153,172,196.65/19,175.88
  6. Step 6: Final answer
    x = 7,987.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.