Home / 20,863.37-28,791.30-11,303.30

Finding the Fourth Proportional to 20,863.37, 28,791.30 and 11,303.30

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Solution

The fourth proportional to 20,863.37, 28,791.30 and 11,303.30 is: 15,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.37 : 28,791.30 = 11,303.30 : x
  2. Step 2: Convert to fraction form
    20,863.37/28,791.30 = 11,303.30/x
  3. Step 3: Cross multiply
    20,863.37x = 28,791.30 × 11,303.30
  4. Step 4: Simplify right side
    20,863.37x = 325,436,590.12
  5. Step 5: Solve for x
    x = 325,436,590.12/20,863.37
  6. Step 6: Final answer
    x = 15,598.47

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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.