Home / 19,651.17-27,114.40-11,691.84

Finding the Fourth Proportional to 19,651.17, 27,114.40 and 11,691.84

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Solution

The fourth proportional to 19,651.17, 27,114.40 and 11,691.84 is: 16,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.17 : 27,114.40 = 11,691.84 : x
  2. Step 2: Convert to fraction form
    19,651.17/27,114.40 = 11,691.84/x
  3. Step 3: Cross multiply
    19,651.17x = 27,114.40 × 11,691.84
  4. Step 4: Simplify right side
    19,651.17x = 317,017,226.50
  5. Step 5: Solve for x
    x = 317,017,226.50/19,651.17
  6. Step 6: Final answer
    x = 16,132.23

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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.