Home / 20,578.64-28,372.70-16,797.96

Finding the Fourth Proportional to 20,578.64, 28,372.70 and 16,797.96

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Solution

The fourth proportional to 20,578.64, 28,372.70 and 16,797.96 is: 23,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.64 : 28,372.70 = 16,797.96 : x
  2. Step 2: Convert to fraction form
    20,578.64/28,372.70 = 16,797.96/x
  3. Step 3: Cross multiply
    20,578.64x = 28,372.70 × 16,797.96
  4. Step 4: Simplify right side
    20,578.64x = 476,603,479.69
  5. Step 5: Solve for x
    x = 476,603,479.69/20,578.64
  6. Step 6: Final answer
    x = 23,160.11

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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.