Home / 38,286.87-57,430.26-11,993.66

Finding the Fourth Proportional to 38,286.87, 57,430.26 and 11,993.66

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Solution

The fourth proportional to 38,286.87, 57,430.26 and 11,993.66 is: 17,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.87 : 57,430.26 = 11,993.66 : x
  2. Step 2: Convert to fraction form
    38,286.87/57,430.26 = 11,993.66/x
  3. Step 3: Cross multiply
    38,286.87x = 57,430.26 × 11,993.66
  4. Step 4: Simplify right side
    38,286.87x = 688,799,012.15
  5. Step 5: Solve for x
    x = 688,799,012.15/38,286.87
  6. Step 6: Final answer
    x = 17,990.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.