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Finding the Fourth Proportional to 20,600.46, 30,859.47 and 9,491.94

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Solution

The fourth proportional to 20,600.46, 30,859.47 and 9,491.94 is: 14,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.46 : 30,859.47 = 9,491.94 : x
  2. Step 2: Convert to fraction form
    20,600.46/30,859.47 = 9,491.94/x
  3. Step 3: Cross multiply
    20,600.46x = 30,859.47 × 9,491.94
  4. Step 4: Simplify right side
    20,600.46x = 292,916,237.67
  5. Step 5: Solve for x
    x = 292,916,237.67/20,600.46
  6. Step 6: Final answer
    x = 14,218.92

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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.