Home / 19,982.16-29,976.48-8,295.84

Finding the Fourth Proportional to 19,982.16, 29,976.48 and 8,295.84

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Solution

The fourth proportional to 19,982.16, 29,976.48 and 8,295.84 is: 12,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.16 : 29,976.48 = 8,295.84 : x
  2. Step 2: Convert to fraction form
    19,982.16/29,976.48 = 8,295.84/x
  3. Step 3: Cross multiply
    19,982.16x = 29,976.48 × 8,295.84
  4. Step 4: Simplify right side
    19,982.16x = 248,680,081.84
  5. Step 5: Solve for x
    x = 248,680,081.84/19,982.16
  6. Step 6: Final answer
    x = 12,445.11

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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.