Home / 19,819.24-27,349.51-11,319.69

Finding the Fourth Proportional to 19,819.24, 27,349.51 and 11,319.69

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Solution

The fourth proportional to 19,819.24, 27,349.51 and 11,319.69 is: 15,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.24 : 27,349.51 = 11,319.69 : x
  2. Step 2: Convert to fraction form
    19,819.24/27,349.51 = 11,319.69/x
  3. Step 3: Cross multiply
    19,819.24x = 27,349.51 × 11,319.69
  4. Step 4: Simplify right side
    19,819.24x = 309,587,974.85
  5. Step 5: Solve for x
    x = 309,587,974.85/19,819.24
  6. Step 6: Final answer
    x = 15,620.58

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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.