Home / 19,251.45-28,890.99-8,161.24

Finding the Fourth Proportional to 19,251.45, 28,890.99 and 8,161.24

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Solution

The fourth proportional to 19,251.45, 28,890.99 and 8,161.24 is: 12,247.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.45 : 28,890.99 = 8,161.24 : x
  2. Step 2: Convert to fraction form
    19,251.45/28,890.99 = 8,161.24/x
  3. Step 3: Cross multiply
    19,251.45x = 28,890.99 × 8,161.24
  4. Step 4: Simplify right side
    19,251.45x = 235,786,303.23
  5. Step 5: Solve for x
    x = 235,786,303.23/19,251.45
  6. Step 6: Final answer
    x = 12,247.72

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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.