Home / 28,699.90-43,114.66-17,020.78

Finding the Fourth Proportional to 28,699.90, 43,114.66 and 17,020.78

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Solution

The fourth proportional to 28,699.90, 43,114.66 and 17,020.78 is: 25,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.90 : 43,114.66 = 17,020.78 : x
  2. Step 2: Convert to fraction form
    28,699.90/43,114.66 = 17,020.78/x
  3. Step 3: Cross multiply
    28,699.90x = 43,114.66 × 17,020.78
  4. Step 4: Simplify right side
    28,699.90x = 733,845,142.63
  5. Step 5: Solve for x
    x = 733,845,142.63/28,699.90
  6. Step 6: Final answer
    x = 25,569.61

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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.