Home / 19,540.82-29,307.79-5,686.58

Finding the Fourth Proportional to 19,540.82, 29,307.79 and 5,686.58

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Solution

The fourth proportional to 19,540.82, 29,307.79 and 5,686.58 is: 8,528.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.82 : 29,307.79 = 5,686.58 : x
  2. Step 2: Convert to fraction form
    19,540.82/29,307.79 = 5,686.58/x
  3. Step 3: Cross multiply
    19,540.82x = 29,307.79 × 5,686.58
  4. Step 4: Simplify right side
    19,540.82x = 166,661,092.46
  5. Step 5: Solve for x
    x = 166,661,092.46/19,540.82
  6. Step 6: Final answer
    x = 8,528.87

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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.