Home / 19,992.45-29,988.71-5,201.34

Finding the Fourth Proportional to 19,992.45, 29,988.71 and 5,201.34

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Solution

The fourth proportional to 19,992.45, 29,988.71 and 5,201.34 is: 7,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.45 : 29,988.71 = 5,201.34 : x
  2. Step 2: Convert to fraction form
    19,992.45/29,988.71 = 5,201.34/x
  3. Step 3: Cross multiply
    19,992.45x = 29,988.71 × 5,201.34
  4. Step 4: Simplify right side
    19,992.45x = 155,981,564.85
  5. Step 5: Solve for x
    x = 155,981,564.85/19,992.45
  6. Step 6: Final answer
    x = 7,802.02

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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.