Home / 20,100.79-30,151.64-7,626.69

Finding the Fourth Proportional to 20,100.79, 30,151.64 and 7,626.69

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Solution

The fourth proportional to 20,100.79, 30,151.64 and 7,626.69 is: 11,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.79 : 30,151.64 = 7,626.69 : x
  2. Step 2: Convert to fraction form
    20,100.79/30,151.64 = 7,626.69/x
  3. Step 3: Cross multiply
    20,100.79x = 30,151.64 × 7,626.69
  4. Step 4: Simplify right side
    20,100.79x = 229,957,022.38
  5. Step 5: Solve for x
    x = 229,957,022.38/20,100.79
  6. Step 6: Final answer
    x = 11,440.20

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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.