Home / 19,982.70-29,978.10-6,835.59

Finding the Fourth Proportional to 19,982.70, 29,978.10 and 6,835.59

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Solution

The fourth proportional to 19,982.70, 29,978.10 and 6,835.59 is: 10,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.70 : 29,978.10 = 6,835.59 : x
  2. Step 2: Convert to fraction form
    19,982.70/29,978.10 = 6,835.59/x
  3. Step 3: Cross multiply
    19,982.70x = 29,978.10 × 6,835.59
  4. Step 4: Simplify right side
    19,982.70x = 204,918,000.58
  5. Step 5: Solve for x
    x = 204,918,000.58/19,982.70
  6. Step 6: Final answer
    x = 10,254.77

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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.