Home / 20,341.76-28,072.96-11,847.04

Finding the Fourth Proportional to 20,341.76, 28,072.96 and 11,847.04

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Solution

The fourth proportional to 20,341.76, 28,072.96 and 11,847.04 is: 16,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.76 : 28,072.96 = 11,847.04 : x
  2. Step 2: Convert to fraction form
    20,341.76/28,072.96 = 11,847.04/x
  3. Step 3: Cross multiply
    20,341.76x = 28,072.96 × 11,847.04
  4. Step 4: Simplify right side
    20,341.76x = 332,581,480.04
  5. Step 5: Solve for x
    x = 332,581,480.04/20,341.76
  6. Step 6: Final answer
    x = 16,349.69

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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.