Home / 31,284.12-43,161.30-17,845.68

Finding the Fourth Proportional to 31,284.12, 43,161.30 and 17,845.68

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Solution

The fourth proportional to 31,284.12, 43,161.30 and 17,845.68 is: 24,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,284.12 : 43,161.30 = 17,845.68 : x
  2. Step 2: Convert to fraction form
    31,284.12/43,161.30 = 17,845.68/x
  3. Step 3: Cross multiply
    31,284.12x = 43,161.30 × 17,845.68
  4. Step 4: Simplify right side
    31,284.12x = 770,242,748.18
  5. Step 5: Solve for x
    x = 770,242,748.18/31,284.12
  6. Step 6: Final answer
    x = 24,620.89

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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.