Home / 20,748.24-28,632.96-11,317.14

Finding the Fourth Proportional to 20,748.24, 28,632.96 and 11,317.14

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Solution

The fourth proportional to 20,748.24, 28,632.96 and 11,317.14 is: 15,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.24 : 28,632.96 = 11,317.14 : x
  2. Step 2: Convert to fraction form
    20,748.24/28,632.96 = 11,317.14/x
  3. Step 3: Cross multiply
    20,748.24x = 28,632.96 × 11,317.14
  4. Step 4: Simplify right side
    20,748.24x = 324,043,216.93
  5. Step 5: Solve for x
    x = 324,043,216.93/20,748.24
  6. Step 6: Final answer
    x = 15,617.87

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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.