Home / 28,930.73-43,356.68-17,690

Finding the Fourth Proportional to 28,930.73, 43,356.68 and 17,690

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Solution

The fourth proportional to 28,930.73, 43,356.68 and 17,690 is: 26,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.73 : 43,356.68 = 17,690 : x
  2. Step 2: Convert to fraction form
    28,930.73/43,356.68 = 17,690/x
  3. Step 3: Cross multiply
    28,930.73x = 43,356.68 × 17,690
  4. Step 4: Simplify right side
    28,930.73x = 766,979,580.75
  5. Step 5: Solve for x
    x = 766,979,580.75/28,930.73
  6. Step 6: Final answer
    x = 26,510.90

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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.