Home / 17,781.63-26,672.43-15,725.85

Finding the Fourth Proportional to 17,781.63, 26,672.43 and 15,725.85

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Solution

The fourth proportional to 17,781.63, 26,672.43 and 15,725.85 is: 23,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,781.63 : 26,672.43 = 15,725.85 : x
  2. Step 2: Convert to fraction form
    17,781.63/26,672.43 = 15,725.85/x
  3. Step 3: Cross multiply
    17,781.63x = 26,672.43 × 15,725.85
  4. Step 4: Simplify right side
    17,781.63x = 419,446,633.32
  5. Step 5: Solve for x
    x = 419,446,633.32/17,781.63
  6. Step 6: Final answer
    x = 23,588.76

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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.