Home / 25,144.09-34,687.85-15,581.43

Finding the Fourth Proportional to 25,144.09, 34,687.85 and 15,581.43

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Solution

The fourth proportional to 25,144.09, 34,687.85 and 15,581.43 is: 21,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,144.09 : 34,687.85 = 15,581.43 : x
  2. Step 2: Convert to fraction form
    25,144.09/34,687.85 = 15,581.43/x
  3. Step 3: Cross multiply
    25,144.09x = 34,687.85 × 15,581.43
  4. Step 4: Simplify right side
    25,144.09x = 540,486,228.72
  5. Step 5: Solve for x
    x = 540,486,228.72/25,144.09
  6. Step 6: Final answer
    x = 21,495.56

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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.