Home / 23,155.12-31,939.68-13,717

Finding the Fourth Proportional to 23,155.12, 31,939.68 and 13,717

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Solution

The fourth proportional to 23,155.12, 31,939.68 and 13,717 is: 18,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,155.12 : 31,939.68 = 13,717 : x
  2. Step 2: Convert to fraction form
    23,155.12/31,939.68 = 13,717/x
  3. Step 3: Cross multiply
    23,155.12x = 31,939.68 × 13,717
  4. Step 4: Simplify right side
    23,155.12x = 438,116,590.56
  5. Step 5: Solve for x
    x = 438,116,590.56/23,155.12
  6. Step 6: Final answer
    x = 18,920.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.