Home / 20,894.36-28,832.34-11,941.84

Finding the Fourth Proportional to 20,894.36, 28,832.34 and 11,941.84

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Solution

The fourth proportional to 20,894.36, 28,832.34 and 11,941.84 is: 16,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.36 : 28,832.34 = 11,941.84 : x
  2. Step 2: Convert to fraction form
    20,894.36/28,832.34 = 11,941.84/x
  3. Step 3: Cross multiply
    20,894.36x = 28,832.34 × 11,941.84
  4. Step 4: Simplify right side
    20,894.36x = 344,311,191.11
  5. Step 5: Solve for x
    x = 344,311,191.11/20,894.36
  6. Step 6: Final answer
    x = 16,478.67

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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.