Home / 20,452.16-28,223.84-11,620.16

Finding the Fourth Proportional to 20,452.16, 28,223.84 and 11,620.16

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Solution

The fourth proportional to 20,452.16, 28,223.84 and 11,620.16 is: 16,035.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.16 : 28,223.84 = 11,620.16 : x
  2. Step 2: Convert to fraction form
    20,452.16/28,223.84 = 11,620.16/x
  3. Step 3: Cross multiply
    20,452.16x = 28,223.84 × 11,620.16
  4. Step 4: Simplify right side
    20,452.16x = 327,965,536.61
  5. Step 5: Solve for x
    x = 327,965,536.61/20,452.16
  6. Step 6: Final answer
    x = 16,035.74

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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.