Home / 21,890.05-32,835.54-7,098.97

Finding the Fourth Proportional to 21,890.05, 32,835.54 and 7,098.97

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Solution

The fourth proportional to 21,890.05, 32,835.54 and 7,098.97 is: 10,648.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.05 : 32,835.54 = 7,098.97 : x
  2. Step 2: Convert to fraction form
    21,890.05/32,835.54 = 7,098.97/x
  3. Step 3: Cross multiply
    21,890.05x = 32,835.54 × 7,098.97
  4. Step 4: Simplify right side
    21,890.05x = 233,098,513.39
  5. Step 5: Solve for x
    x = 233,098,513.39/21,890.05
  6. Step 6: Final answer
    x = 10,648.61

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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.