Home / 20,592.96-28,418.44-11,161.48

Finding the Fourth Proportional to 20,592.96, 28,418.44 and 11,161.48

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Solution

The fourth proportional to 20,592.96, 28,418.44 and 11,161.48 is: 15,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.96 : 28,418.44 = 11,161.48 : x
  2. Step 2: Convert to fraction form
    20,592.96/28,418.44 = 11,161.48/x
  3. Step 3: Cross multiply
    20,592.96x = 28,418.44 × 11,161.48
  4. Step 4: Simplify right side
    20,592.96x = 317,191,849.69
  5. Step 5: Solve for x
    x = 317,191,849.69/20,592.96
  6. Step 6: Final answer
    x = 15,402.93

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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.