Home / 19,017.58-28,538.79-8,629.42

Finding the Fourth Proportional to 19,017.58, 28,538.79 and 8,629.42

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Solution

The fourth proportional to 19,017.58, 28,538.79 and 8,629.42 is: 12,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.58 : 28,538.79 = 8,629.42 : x
  2. Step 2: Convert to fraction form
    19,017.58/28,538.79 = 8,629.42/x
  3. Step 3: Cross multiply
    19,017.58x = 28,538.79 × 8,629.42
  4. Step 4: Simplify right side
    19,017.58x = 246,273,205.20
  5. Step 5: Solve for x
    x = 246,273,205.20/19,017.58
  6. Step 6: Final answer
    x = 12,949.77

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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.