Home / 19,951.56-29,920.68-6,622.02

Finding the Fourth Proportional to 19,951.56, 29,920.68 and 6,622.02

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Solution

The fourth proportional to 19,951.56, 29,920.68 and 6,622.02 is: 9,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.56 : 29,920.68 = 6,622.02 : x
  2. Step 2: Convert to fraction form
    19,951.56/29,920.68 = 6,622.02/x
  3. Step 3: Cross multiply
    19,951.56x = 29,920.68 × 6,622.02
  4. Step 4: Simplify right side
    19,951.56x = 198,135,341.37
  5. Step 5: Solve for x
    x = 198,135,341.37/19,951.56
  6. Step 6: Final answer
    x = 9,930.82

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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.