Home / 31,253.85-46,891.58-13,721.13

Finding the Fourth Proportional to 31,253.85, 46,891.58 and 13,721.13

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Solution

The fourth proportional to 31,253.85, 46,891.58 and 13,721.13 is: 20,586.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.85 : 46,891.58 = 13,721.13 : x
  2. Step 2: Convert to fraction form
    31,253.85/46,891.58 = 13,721.13/x
  3. Step 3: Cross multiply
    31,253.85x = 46,891.58 × 13,721.13
  4. Step 4: Simplify right side
    31,253.85x = 643,405,396.48
  5. Step 5: Solve for x
    x = 643,405,396.48/31,253.85
  6. Step 6: Final answer
    x = 20,586.44

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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.