Home / 19,251.20-28,890.62-8,160.99

Finding the Fourth Proportional to 19,251.20, 28,890.62 and 8,160.99

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Solution

The fourth proportional to 19,251.20, 28,890.62 and 8,160.99 is: 12,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.20 : 28,890.62 = 8,160.99 : x
  2. Step 2: Convert to fraction form
    19,251.20/28,890.62 = 8,160.99/x
  3. Step 3: Cross multiply
    19,251.20x = 28,890.62 × 8,160.99
  4. Step 4: Simplify right side
    19,251.20x = 235,776,020.11
  5. Step 5: Solve for x
    x = 235,776,020.11/19,251.20
  6. Step 6: Final answer
    x = 12,247.34

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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.