Home / 20,664.60-30,998.10-5,874.60

Finding the Fourth Proportional to 20,664.60, 30,998.10 and 5,874.60

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Solution

The fourth proportional to 20,664.60, 30,998.10 and 5,874.60 is: 8,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.60 : 30,998.10 = 5,874.60 : x
  2. Step 2: Convert to fraction form
    20,664.60/30,998.10 = 5,874.60/x
  3. Step 3: Cross multiply
    20,664.60x = 30,998.10 × 5,874.60
  4. Step 4: Simplify right side
    20,664.60x = 182,101,438.26
  5. Step 5: Solve for x
    x = 182,101,438.26/20,664.60
  6. Step 6: Final answer
    x = 8,812.24

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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.