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Finding the Fourth Proportional to 20,508.66, 30,763.02 and 11,737.38

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Solution

The fourth proportional to 20,508.66, 30,763.02 and 11,737.38 is: 17,606.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.66 : 30,763.02 = 11,737.38 : x
  2. Step 2: Convert to fraction form
    20,508.66/30,763.02 = 11,737.38/x
  3. Step 3: Cross multiply
    20,508.66x = 30,763.02 × 11,737.38
  4. Step 4: Simplify right side
    20,508.66x = 361,077,255.69
  5. Step 5: Solve for x
    x = 361,077,255.69/20,508.66
  6. Step 6: Final answer
    x = 17,606.09

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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.