Home / 31,186.35-43,042.39-17,755.74

Finding the Fourth Proportional to 31,186.35, 43,042.39 and 17,755.74

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Solution

The fourth proportional to 31,186.35, 43,042.39 and 17,755.74 is: 24,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186.35 : 43,042.39 = 17,755.74 : x
  2. Step 2: Convert to fraction form
    31,186.35/43,042.39 = 17,755.74/x
  3. Step 3: Cross multiply
    31,186.35x = 43,042.39 × 17,755.74
  4. Step 4: Simplify right side
    31,186.35x = 764,249,441.43
  5. Step 5: Solve for x
    x = 764,249,441.43/31,186.35
  6. Step 6: Final answer
    x = 24,505.90

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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.