Home / 19,819.82-27,346.86-13,447.28

Finding the Fourth Proportional to 19,819.82, 27,346.86 and 13,447.28

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Solution

The fourth proportional to 19,819.82, 27,346.86 and 13,447.28 is: 18,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.82 : 27,346.86 = 13,447.28 : x
  2. Step 2: Convert to fraction form
    19,819.82/27,346.86 = 13,447.28/x
  3. Step 3: Cross multiply
    19,819.82x = 27,346.86 × 13,447.28
  4. Step 4: Simplify right side
    19,819.82x = 367,740,883.54
  5. Step 5: Solve for x
    x = 367,740,883.54/19,819.82
  6. Step 6: Final answer
    x = 18,554.20

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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.