Home / 20,639.74-30,954.76-6,601.02

Finding the Fourth Proportional to 20,639.74, 30,954.76 and 6,601.02

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Solution

The fourth proportional to 20,639.74, 30,954.76 and 6,601.02 is: 9,899.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.74 : 30,954.76 = 6,601.02 : x
  2. Step 2: Convert to fraction form
    20,639.74/30,954.76 = 6,601.02/x
  3. Step 3: Cross multiply
    20,639.74x = 30,954.76 × 6,601.02
  4. Step 4: Simplify right side
    20,639.74x = 204,332,989.86
  5. Step 5: Solve for x
    x = 204,332,989.86/20,639.74
  6. Step 6: Final answer
    x = 9,899.98

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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.