Home / 29,279.21-40,404.83-15,850.35

Finding the Fourth Proportional to 29,279.21, 40,404.83 and 15,850.35

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Solution

The fourth proportional to 29,279.21, 40,404.83 and 15,850.35 is: 21,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,279.21 : 40,404.83 = 15,850.35 : x
  2. Step 2: Convert to fraction form
    29,279.21/40,404.83 = 15,850.35/x
  3. Step 3: Cross multiply
    29,279.21x = 40,404.83 × 15,850.35
  4. Step 4: Simplify right side
    29,279.21x = 640,430,736.82
  5. Step 5: Solve for x
    x = 640,430,736.82/29,279.21
  6. Step 6: Final answer
    x = 21,873.22

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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.