Home / 27,517.29-37,977.87-15,418.59

Finding the Fourth Proportional to 27,517.29, 37,977.87 and 15,418.59

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Solution

The fourth proportional to 27,517.29, 37,977.87 and 15,418.59 is: 21,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,517.29 : 37,977.87 = 15,418.59 : x
  2. Step 2: Convert to fraction form
    27,517.29/37,977.87 = 15,418.59/x
  3. Step 3: Cross multiply
    27,517.29x = 37,977.87 × 15,418.59
  4. Step 4: Simplify right side
    27,517.29x = 585,565,111.66
  5. Step 5: Solve for x
    x = 585,565,111.66/27,517.29
  6. Step 6: Final answer
    x = 21,279.90

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Why These Related Problems?

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