Home / 31,379.14-43,302.99-17,231.70

Finding the Fourth Proportional to 31,379.14, 43,302.99 and 17,231.70

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Solution

The fourth proportional to 31,379.14, 43,302.99 and 17,231.70 is: 23,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.14 : 43,302.99 = 17,231.70 : x
  2. Step 2: Convert to fraction form
    31,379.14/43,302.99 = 17,231.70/x
  3. Step 3: Cross multiply
    31,379.14x = 43,302.99 × 17,231.70
  4. Step 4: Simplify right side
    31,379.14x = 746,184,132.78
  5. Step 5: Solve for x
    x = 746,184,132.78/31,379.14
  6. Step 6: Final answer
    x = 23,779.62

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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.