Home / 19,982.97-29,974.32-6,656.99

Finding the Fourth Proportional to 19,982.97, 29,974.32 and 6,656.99

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Solution

The fourth proportional to 19,982.97, 29,974.32 and 6,656.99 is: 9,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.97 : 29,974.32 = 6,656.99 : x
  2. Step 2: Convert to fraction form
    19,982.97/29,974.32 = 6,656.99/x
  3. Step 3: Cross multiply
    19,982.97x = 29,974.32 × 6,656.99
  4. Step 4: Simplify right side
    19,982.97x = 199,538,598.63
  5. Step 5: Solve for x
    x = 199,538,598.63/19,982.97
  6. Step 6: Final answer
    x = 9,985.43

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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.