Home / 16,455.82-22,685.40-11,731.90

Finding the Fourth Proportional to 16,455.82, 22,685.40 and 11,731.90

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Solution

The fourth proportional to 16,455.82, 22,685.40 and 11,731.90 is: 16,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.82 : 22,685.40 = 11,731.90 : x
  2. Step 2: Convert to fraction form
    16,455.82/22,685.40 = 11,731.90/x
  3. Step 3: Cross multiply
    16,455.82x = 22,685.40 × 11,731.90
  4. Step 4: Simplify right side
    16,455.82x = 266,142,844.26
  5. Step 5: Solve for x
    x = 266,142,844.26/16,455.82
  6. Step 6: Final answer
    x = 16,173.17

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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.