Home / 19,100.27-28,621.10-8,000.88

Finding the Fourth Proportional to 19,100.27, 28,621.10 and 8,000.88

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Solution

The fourth proportional to 19,100.27, 28,621.10 and 8,000.88 is: 11,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.27 : 28,621.10 = 8,000.88 : x
  2. Step 2: Convert to fraction form
    19,100.27/28,621.10 = 8,000.88/x
  3. Step 3: Cross multiply
    19,100.27x = 28,621.10 × 8,000.88
  4. Step 4: Simplify right side
    19,100.27x = 228,993,946.56
  5. Step 5: Solve for x
    x = 228,993,946.56/19,100.27
  6. Step 6: Final answer
    x = 11,989.05

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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.