Home / 31,699.69-43,745.49-18,270.83

Finding the Fourth Proportional to 31,699.69, 43,745.49 and 18,270.83

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Solution

The fourth proportional to 31,699.69, 43,745.49 and 18,270.83 is: 25,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699.69 : 43,745.49 = 18,270.83 : x
  2. Step 2: Convert to fraction form
    31,699.69/43,745.49 = 18,270.83/x
  3. Step 3: Cross multiply
    31,699.69x = 43,745.49 × 18,270.83
  4. Step 4: Simplify right side
    31,699.69x = 799,266,520.42
  5. Step 5: Solve for x
    x = 799,266,520.42/31,699.69
  6. Step 6: Final answer
    x = 25,213.70

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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.