Home / 16,942.74-23,381.18-9,869.82

Finding the Fourth Proportional to 16,942.74, 23,381.18 and 9,869.82

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Solution

The fourth proportional to 16,942.74, 23,381.18 and 9,869.82 is: 13,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,942.74 : 23,381.18 = 9,869.82 : x
  2. Step 2: Convert to fraction form
    16,942.74/23,381.18 = 9,869.82/x
  3. Step 3: Cross multiply
    16,942.74x = 23,381.18 × 9,869.82
  4. Step 4: Simplify right side
    16,942.74x = 230,768,037.99
  5. Step 5: Solve for x
    x = 230,768,037.99/16,942.74
  6. Step 6: Final answer
    x = 13,620.47

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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.