Home / 30,291.82-41,819.11-21,244.96

Finding the Fourth Proportional to 30,291.82, 41,819.11 and 21,244.96

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Solution

The fourth proportional to 30,291.82, 41,819.11 and 21,244.96 is: 29,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.82 : 41,819.11 = 21,244.96 : x
  2. Step 2: Convert to fraction form
    30,291.82/41,819.11 = 21,244.96/x
  3. Step 3: Cross multiply
    30,291.82x = 41,819.11 × 21,244.96
  4. Step 4: Simplify right side
    30,291.82x = 888,445,319.19
  5. Step 5: Solve for x
    x = 888,445,319.19/30,291.82
  6. Step 6: Final answer
    x = 29,329.55

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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.