Home / 31,624.05-43,640.01-18,197.39

Finding the Fourth Proportional to 31,624.05, 43,640.01 and 18,197.39

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Solution

The fourth proportional to 31,624.05, 43,640.01 and 18,197.39 is: 25,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.05 : 43,640.01 = 18,197.39 : x
  2. Step 2: Convert to fraction form
    31,624.05/43,640.01 = 18,197.39/x
  3. Step 3: Cross multiply
    31,624.05x = 43,640.01 × 18,197.39
  4. Step 4: Simplify right side
    31,624.05x = 794,134,063.37
  5. Step 5: Solve for x
    x = 794,134,063.37/31,624.05
  6. Step 6: Final answer
    x = 25,111.71

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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.