Home / 20,863.64-28,791.85-11,303.64

Finding the Fourth Proportional to 20,863.64, 28,791.85 and 11,303.64

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Solution

The fourth proportional to 20,863.64, 28,791.85 and 11,303.64 is: 15,599.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.64 : 28,791.85 = 11,303.64 : x
  2. Step 2: Convert to fraction form
    20,863.64/28,791.85 = 11,303.64/x
  3. Step 3: Cross multiply
    20,863.64x = 28,791.85 × 11,303.64
  4. Step 4: Simplify right side
    20,863.64x = 325,452,707.33
  5. Step 5: Solve for x
    x = 325,452,707.33/20,863.64
  6. Step 6: Final answer
    x = 15,599.04

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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.