Home / 20,341.75-28,070.11-11,843.94

Finding the Fourth Proportional to 20,341.75, 28,070.11 and 11,843.94

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Solution

The fourth proportional to 20,341.75, 28,070.11 and 11,843.94 is: 16,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.75 : 28,070.11 = 11,843.94 : x
  2. Step 2: Convert to fraction form
    20,341.75/28,070.11 = 11,843.94/x
  3. Step 3: Cross multiply
    20,341.75x = 28,070.11 × 11,843.94
  4. Step 4: Simplify right side
    20,341.75x = 332,460,698.63
  5. Step 5: Solve for x
    x = 332,460,698.63/20,341.75
  6. Step 6: Final answer
    x = 16,343.76

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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.