Home / 25,181.56-34,756.17-19,719.79

Finding the Fourth Proportional to 25,181.56, 34,756.17 and 19,719.79

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Solution

The fourth proportional to 25,181.56, 34,756.17 and 19,719.79 is: 27,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,181.56 : 34,756.17 = 19,719.79 : x
  2. Step 2: Convert to fraction form
    25,181.56/34,756.17 = 19,719.79/x
  3. Step 3: Cross multiply
    25,181.56x = 34,756.17 × 19,719.79
  4. Step 4: Simplify right side
    25,181.56x = 685,384,460.49
  5. Step 5: Solve for x
    x = 685,384,460.49/25,181.56
  6. Step 6: Final answer
    x = 27,217.71

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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.