Home / 17,581.46-26,357.40-12,021.21

Finding the Fourth Proportional to 17,581.46, 26,357.40 and 12,021.21

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Solution

The fourth proportional to 17,581.46, 26,357.40 and 12,021.21 is: 18,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,581.46 : 26,357.40 = 12,021.21 : x
  2. Step 2: Convert to fraction form
    17,581.46/26,357.40 = 12,021.21/x
  3. Step 3: Cross multiply
    17,581.46x = 26,357.40 × 12,021.21
  4. Step 4: Simplify right side
    17,581.46x = 316,847,840.45
  5. Step 5: Solve for x
    x = 316,847,840.45/17,581.46
  6. Step 6: Final answer
    x = 18,021.71

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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.