Home / 29,279.24-40,405.43-15,850.46

Finding the Fourth Proportional to 29,279.24, 40,405.43 and 15,850.46

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Solution

The fourth proportional to 29,279.24, 40,405.43 and 15,850.46 is: 21,873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,279.24 : 40,405.43 = 15,850.46 : x
  2. Step 2: Convert to fraction form
    29,279.24/40,405.43 = 15,850.46/x
  3. Step 3: Cross multiply
    29,279.24x = 40,405.43 × 15,850.46
  4. Step 4: Simplify right side
    29,279.24x = 640,444,489.60
  5. Step 5: Solve for x
    x = 640,444,489.60/29,279.24
  6. Step 6: Final answer
    x = 21,873.68

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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.