Home / 21,621.12-32,431.68-16,697.94

Finding the Fourth Proportional to 21,621.12, 32,431.68 and 16,697.94

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Solution

The fourth proportional to 21,621.12, 32,431.68 and 16,697.94 is: 25,046.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.12 : 32,431.68 = 16,697.94 : x
  2. Step 2: Convert to fraction form
    21,621.12/32,431.68 = 16,697.94/x
  3. Step 3: Cross multiply
    21,621.12x = 32,431.68 × 16,697.94
  4. Step 4: Simplify right side
    21,621.12x = 541,542,246.74
  5. Step 5: Solve for x
    x = 541,542,246.74/21,621.12
  6. Step 6: Final answer
    x = 25,046.91

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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.