Home / 20,292.50-28,003.65-12,333.24

Finding the Fourth Proportional to 20,292.50, 28,003.65 and 12,333.24

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Solution

The fourth proportional to 20,292.50, 28,003.65 and 12,333.24 is: 17,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.50 : 28,003.65 = 12,333.24 : x
  2. Step 2: Convert to fraction form
    20,292.50/28,003.65 = 12,333.24/x
  3. Step 3: Cross multiply
    20,292.50x = 28,003.65 × 12,333.24
  4. Step 4: Simplify right side
    20,292.50x = 345,375,736.33
  5. Step 5: Solve for x
    x = 345,375,736.33/20,292.50
  6. Step 6: Final answer
    x = 17,019.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.