Home / 16,451.75-22,682.81-13,730.19

Finding the Fourth Proportional to 16,451.75, 22,682.81 and 13,730.19

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Solution

The fourth proportional to 16,451.75, 22,682.81 and 13,730.19 is: 18,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,451.75 : 22,682.81 = 13,730.19 : x
  2. Step 2: Convert to fraction form
    16,451.75/22,682.81 = 13,730.19/x
  3. Step 3: Cross multiply
    16,451.75x = 22,682.81 × 13,730.19
  4. Step 4: Simplify right side
    16,451.75x = 311,439,291.03
  5. Step 5: Solve for x
    x = 311,439,291.03/16,451.75
  6. Step 6: Final answer
    x = 18,930.47

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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.