Home / 29,286.89-40,415.84-15,858.15

Finding the Fourth Proportional to 29,286.89, 40,415.84 and 15,858.15

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Solution

The fourth proportional to 29,286.89, 40,415.84 and 15,858.15 is: 21,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,286.89 : 40,415.84 = 15,858.15 : x
  2. Step 2: Convert to fraction form
    29,286.89/40,415.84 = 15,858.15/x
  3. Step 3: Cross multiply
    29,286.89x = 40,415.84 × 15,858.15
  4. Step 4: Simplify right side
    29,286.89x = 640,920,453.10
  5. Step 5: Solve for x
    x = 640,920,453.10/29,286.89
  6. Step 6: Final answer
    x = 21,884.21

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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.