Home / 31,738.64-43,799.23-18,309.65

Finding the Fourth Proportional to 31,738.64, 43,799.23 and 18,309.65

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Solution

The fourth proportional to 31,738.64, 43,799.23 and 18,309.65 is: 25,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.64 : 43,799.23 = 18,309.65 : x
  2. Step 2: Convert to fraction form
    31,738.64/43,799.23 = 18,309.65/x
  3. Step 3: Cross multiply
    31,738.64x = 43,799.23 × 18,309.65
  4. Step 4: Simplify right side
    31,738.64x = 801,948,375.46
  5. Step 5: Solve for x
    x = 801,948,375.46/31,738.64
  6. Step 6: Final answer
    x = 25,267.26

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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.