Home / 21,281.32-29,367.94-11,849.89

Finding the Fourth Proportional to 21,281.32, 29,367.94 and 11,849.89

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Solution

The fourth proportional to 21,281.32, 29,367.94 and 11,849.89 is: 16,352.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.32 : 29,367.94 = 11,849.89 : x
  2. Step 2: Convert to fraction form
    21,281.32/29,367.94 = 11,849.89/x
  3. Step 3: Cross multiply
    21,281.32x = 29,367.94 × 11,849.89
  4. Step 4: Simplify right side
    21,281.32x = 348,006,858.53
  5. Step 5: Solve for x
    x = 348,006,858.53/21,281.32
  6. Step 6: Final answer
    x = 16,352.69

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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.