Home / 27,135.88-37,446.42-15,805.72

Finding the Fourth Proportional to 27,135.88, 37,446.42 and 15,805.72

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Solution

The fourth proportional to 27,135.88, 37,446.42 and 15,805.72 is: 21,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.88 : 37,446.42 = 15,805.72 : x
  2. Step 2: Convert to fraction form
    27,135.88/37,446.42 = 15,805.72/x
  3. Step 3: Cross multiply
    27,135.88x = 37,446.42 × 15,805.72
  4. Step 4: Simplify right side
    27,135.88x = 591,867,629.52
  5. Step 5: Solve for x
    x = 591,867,629.52/27,135.88
  6. Step 6: Final answer
    x = 21,811.26

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1.5x scale

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.