Home / 20,324.35-30,489.69-12,010.36

Finding the Fourth Proportional to 20,324.35, 30,489.69 and 12,010.36

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Solution

The fourth proportional to 20,324.35, 30,489.69 and 12,010.36 is: 18,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.35 : 30,489.69 = 12,010.36 : x
  2. Step 2: Convert to fraction form
    20,324.35/30,489.69 = 12,010.36/x
  3. Step 3: Cross multiply
    20,324.35x = 30,489.69 × 12,010.36
  4. Step 4: Simplify right side
    20,324.35x = 366,192,153.19
  5. Step 5: Solve for x
    x = 366,192,153.19/20,324.35
  6. Step 6: Final answer
    x = 18,017.41

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1.5x scale

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.