Home / 20,748.82-28,632.22-11,795.08

Finding the Fourth Proportional to 20,748.82, 28,632.22 and 11,795.08

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Solution

The fourth proportional to 20,748.82, 28,632.22 and 11,795.08 is: 16,276.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.82 : 28,632.22 = 11,795.08 : x
  2. Step 2: Convert to fraction form
    20,748.82/28,632.22 = 11,795.08/x
  3. Step 3: Cross multiply
    20,748.82x = 28,632.22 × 11,795.08
  4. Step 4: Simplify right side
    20,748.82x = 337,719,325.48
  5. Step 5: Solve for x
    x = 337,719,325.48/20,748.82
  6. Step 6: Final answer
    x = 16,276.56

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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.