Home / 43,481.70-65,230.92-18,521.28

Finding the Fourth Proportional to 43,481.70, 65,230.92 and 18,521.28

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Solution

The fourth proportional to 43,481.70, 65,230.92 and 18,521.28 is: 27,785.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,481.70 : 65,230.92 = 18,521.28 : x
  2. Step 2: Convert to fraction form
    43,481.70/65,230.92 = 18,521.28/x
  3. Step 3: Cross multiply
    43,481.70x = 65,230.92 × 18,521.28
  4. Step 4: Simplify right side
    43,481.70x = 1,208,160,133.98
  5. Step 5: Solve for x
    x = 1,208,160,133.98/43,481.70
  6. Step 6: Final answer
    x = 27,785.49

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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.