Home / 20,833.27-28,750.60-11,401.83

Finding the Fourth Proportional to 20,833.27, 28,750.60 and 11,401.83

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Solution

The fourth proportional to 20,833.27, 28,750.60 and 11,401.83 is: 15,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.27 : 28,750.60 = 11,401.83 : x
  2. Step 2: Convert to fraction form
    20,833.27/28,750.60 = 11,401.83/x
  3. Step 3: Cross multiply
    20,833.27x = 28,750.60 × 11,401.83
  4. Step 4: Simplify right side
    20,833.27x = 327,809,403.71
  5. Step 5: Solve for x
    x = 327,809,403.71/20,833.27
  6. Step 6: Final answer
    x = 15,734.90

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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.