Home / 20,833.44-28,750.82-11,401.99

Finding the Fourth Proportional to 20,833.44, 28,750.82 and 11,401.99

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Solution

The fourth proportional to 20,833.44, 28,750.82 and 11,401.99 is: 15,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.44 : 28,750.82 = 11,401.99 : x
  2. Step 2: Convert to fraction form
    20,833.44/28,750.82 = 11,401.99/x
  3. Step 3: Cross multiply
    20,833.44x = 28,750.82 × 11,401.99
  4. Step 4: Simplify right side
    20,833.44x = 327,816,562.13
  5. Step 5: Solve for x
    x = 327,816,562.13/20,833.44
  6. Step 6: Final answer
    x = 15,735.11

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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.