Home / 29,198.21-40,251.53-20,800.13

Finding the Fourth Proportional to 29,198.21, 40,251.53 and 20,800.13

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Solution

The fourth proportional to 29,198.21, 40,251.53 and 20,800.13 is: 28,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,198.21 : 40,251.53 = 20,800.13 : x
  2. Step 2: Convert to fraction form
    29,198.21/40,251.53 = 20,800.13/x
  3. Step 3: Cross multiply
    29,198.21x = 40,251.53 × 20,800.13
  4. Step 4: Simplify right side
    29,198.21x = 837,236,907.44
  5. Step 5: Solve for x
    x = 837,236,907.44/29,198.21
  6. Step 6: Final answer
    x = 28,674.26

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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.