Home / 20,310.44-30,465.60-7,159.64

Finding the Fourth Proportional to 20,310.44, 30,465.60 and 7,159.64

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Solution

The fourth proportional to 20,310.44, 30,465.60 and 7,159.64 is: 10,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.44 : 30,465.60 = 7,159.64 : x
  2. Step 2: Convert to fraction form
    20,310.44/30,465.60 = 7,159.64/x
  3. Step 3: Cross multiply
    20,310.44x = 30,465.60 × 7,159.64
  4. Step 4: Simplify right side
    20,310.44x = 218,122,728.38
  5. Step 5: Solve for x
    x = 218,122,728.38/20,310.44
  6. Step 6: Final answer
    x = 10,739.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.