Home / 25,429.74-38,146.29-8,791.38

Finding the Fourth Proportional to 25,429.74, 38,146.29 and 8,791.38

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Solution

The fourth proportional to 25,429.74, 38,146.29 and 8,791.38 is: 13,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.74 : 38,146.29 = 8,791.38 : x
  2. Step 2: Convert to fraction form
    25,429.74/38,146.29 = 8,791.38/x
  3. Step 3: Cross multiply
    25,429.74x = 38,146.29 × 8,791.38
  4. Step 4: Simplify right side
    25,429.74x = 335,358,530.98
  5. Step 5: Solve for x
    x = 335,358,530.98/25,429.74
  6. Step 6: Final answer
    x = 13,187.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.