Home / 20,834.37-28,750.86-11,881.67

Finding the Fourth Proportional to 20,834.37, 28,750.86 and 11,881.67

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Solution

The fourth proportional to 20,834.37, 28,750.86 and 11,881.67 is: 16,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.37 : 28,750.86 = 11,881.67 : x
  2. Step 2: Convert to fraction form
    20,834.37/28,750.86 = 11,881.67/x
  3. Step 3: Cross multiply
    20,834.37x = 28,750.86 × 11,881.67
  4. Step 4: Simplify right side
    20,834.37x = 341,608,230.74
  5. Step 5: Solve for x
    x = 341,608,230.74/20,834.37
  6. Step 6: Final answer
    x = 16,396.38

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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.