Home / 19,230.68-28,849.92-8,137.40

Finding the Fourth Proportional to 19,230.68, 28,849.92 and 8,137.40

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Solution

The fourth proportional to 19,230.68, 28,849.92 and 8,137.40 is: 12,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.68 : 28,849.92 = 8,137.40 : x
  2. Step 2: Convert to fraction form
    19,230.68/28,849.92 = 8,137.40/x
  3. Step 3: Cross multiply
    19,230.68x = 28,849.92 × 8,137.40
  4. Step 4: Simplify right side
    19,230.68x = 234,763,339.01
  5. Step 5: Solve for x
    x = 234,763,339.01/19,230.68
  6. Step 6: Final answer
    x = 12,207.75

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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.