Home / 38,211.84-57,329.28-11,919.36

Finding the Fourth Proportional to 38,211.84, 57,329.28 and 11,919.36

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Solution

The fourth proportional to 38,211.84, 57,329.28 and 11,919.36 is: 17,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.84 : 57,329.28 = 11,919.36 : x
  2. Step 2: Convert to fraction form
    38,211.84/57,329.28 = 11,919.36/x
  3. Step 3: Cross multiply
    38,211.84x = 57,329.28 × 11,919.36
  4. Step 4: Simplify right side
    38,211.84x = 683,328,326.86
  5. Step 5: Solve for x
    x = 683,328,326.86/38,211.84
  6. Step 6: Final answer
    x = 17,882.63

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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.