Home / 20,329.11-30,472.06-9,792.56

Finding the Fourth Proportional to 20,329.11, 30,472.06 and 9,792.56

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Solution

The fourth proportional to 20,329.11, 30,472.06 and 9,792.56 is: 14,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.11 : 30,472.06 = 9,792.56 : x
  2. Step 2: Convert to fraction form
    20,329.11/30,472.06 = 9,792.56/x
  3. Step 3: Cross multiply
    20,329.11x = 30,472.06 × 9,792.56
  4. Step 4: Simplify right side
    20,329.11x = 298,399,475.87
  5. Step 5: Solve for x
    x = 298,399,475.87/20,329.11
  6. Step 6: Final answer
    x = 14,678.43

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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.