Home / 16,991.42-23,449.64-9,439.22

Finding the Fourth Proportional to 16,991.42, 23,449.64 and 9,439.22

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Solution

The fourth proportional to 16,991.42, 23,449.64 and 9,439.22 is: 13,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.42 : 23,449.64 = 9,439.22 : x
  2. Step 2: Convert to fraction form
    16,991.42/23,449.64 = 9,439.22/x
  3. Step 3: Cross multiply
    16,991.42x = 23,449.64 × 9,439.22
  4. Step 4: Simplify right side
    16,991.42x = 221,346,310.88
  5. Step 5: Solve for x
    x = 221,346,310.88/16,991.42
  6. Step 6: Final answer
    x = 13,026.95

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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.