Home / 29,286.96-40,416.34-15,858.52

Finding the Fourth Proportional to 29,286.96, 40,416.34 and 15,858.52

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Solution

The fourth proportional to 29,286.96, 40,416.34 and 15,858.52 is: 21,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,286.96 : 40,416.34 = 15,858.52 : x
  2. Step 2: Convert to fraction form
    29,286.96/40,416.34 = 15,858.52/x
  3. Step 3: Cross multiply
    29,286.96x = 40,416.34 × 15,858.52
  4. Step 4: Simplify right side
    29,286.96x = 640,943,336.22
  5. Step 5: Solve for x
    x = 640,943,336.22/29,286.96
  6. Step 6: Final answer
    x = 21,884.94

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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.