Home / 28,805.51-43,174.31-12,992.03

Finding the Fourth Proportional to 28,805.51, 43,174.31 and 12,992.03

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Solution

The fourth proportional to 28,805.51, 43,174.31 and 12,992.03 is: 19,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.51 : 43,174.31 = 12,992.03 : x
  2. Step 2: Convert to fraction form
    28,805.51/43,174.31 = 12,992.03/x
  3. Step 3: Cross multiply
    28,805.51x = 43,174.31 × 12,992.03
  4. Step 4: Simplify right side
    28,805.51x = 560,921,649.92
  5. Step 5: Solve for x
    x = 560,921,649.92/28,805.51
  6. Step 6: Final answer
    x = 19,472.72

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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.