Home / 23,619.66-35,473.23-18,720.78

Finding the Fourth Proportional to 23,619.66, 35,473.23 and 18,720.78

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Solution

The fourth proportional to 23,619.66, 35,473.23 and 18,720.78 is: 28,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,619.66 : 35,473.23 = 18,720.78 : x
  2. Step 2: Convert to fraction form
    23,619.66/35,473.23 = 18,720.78/x
  3. Step 3: Cross multiply
    23,619.66x = 35,473.23 × 18,720.78
  4. Step 4: Simplify right side
    23,619.66x = 664,086,534.72
  5. Step 5: Solve for x
    x = 664,086,534.72/23,619.66
  6. Step 6: Final answer
    x = 28,115.84

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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.