Home / 19,411.11-29,093.18-13,779.92

Finding the Fourth Proportional to 19,411.11, 29,093.18 and 13,779.92

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Solution

The fourth proportional to 19,411.11, 29,093.18 and 13,779.92 is: 20,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.11 : 29,093.18 = 13,779.92 : x
  2. Step 2: Convert to fraction form
    19,411.11/29,093.18 = 13,779.92/x
  3. Step 3: Cross multiply
    19,411.11x = 29,093.18 × 13,779.92
  4. Step 4: Simplify right side
    19,411.11x = 400,901,696.78
  5. Step 5: Solve for x
    x = 400,901,696.78/19,411.11
  6. Step 6: Final answer
    x = 20,653.21

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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.