Home / 19,949.84-29,929.10-9,959.96

Finding the Fourth Proportional to 19,949.84, 29,929.10 and 9,959.96

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Solution

The fourth proportional to 19,949.84, 29,929.10 and 9,959.96 is: 14,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.84 : 29,929.10 = 9,959.96 : x
  2. Step 2: Convert to fraction form
    19,949.84/29,929.10 = 9,959.96/x
  3. Step 3: Cross multiply
    19,949.84x = 29,929.10 × 9,959.96
  4. Step 4: Simplify right side
    19,949.84x = 298,092,663.86
  5. Step 5: Solve for x
    x = 298,092,663.86/19,949.84
  6. Step 6: Final answer
    x = 14,942.10

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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.