Home / 29,286.76-40,415.67-15,858.06

Finding the Fourth Proportional to 29,286.76, 40,415.67 and 15,858.06

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Solution

The fourth proportional to 29,286.76, 40,415.67 and 15,858.06 is: 21,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,286.76 : 40,415.67 = 15,858.06 : x
  2. Step 2: Convert to fraction form
    29,286.76/40,415.67 = 15,858.06/x
  3. Step 3: Cross multiply
    29,286.76x = 40,415.67 × 15,858.06
  4. Step 4: Simplify right side
    29,286.76x = 640,914,054.93
  5. Step 5: Solve for x
    x = 640,914,054.93/29,286.76
  6. Step 6: Final answer
    x = 21,884.09

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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.