Home / 27,135.58-37,446-15,805.43

Finding the Fourth Proportional to 27,135.58, 37,446 and 15,805.43

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Solution

The fourth proportional to 27,135.58, 37,446 and 15,805.43 is: 21,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.58 : 37,446 = 15,805.43 : x
  2. Step 2: Convert to fraction form
    27,135.58/37,446 = 15,805.43/x
  3. Step 3: Cross multiply
    27,135.58x = 37,446 × 15,805.43
  4. Step 4: Simplify right side
    27,135.58x = 591,850,131.78
  5. Step 5: Solve for x
    x = 591,850,131.78/27,135.58
  6. Step 6: Final answer
    x = 21,810.86

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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.