Home / 20,501.27-30,738.73-8,651.80

Finding the Fourth Proportional to 20,501.27, 30,738.73 and 8,651.80

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Solution

The fourth proportional to 20,501.27, 30,738.73 and 8,651.80 is: 12,972.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.27 : 30,738.73 = 8,651.80 : x
  2. Step 2: Convert to fraction form
    20,501.27/30,738.73 = 8,651.80/x
  3. Step 3: Cross multiply
    20,501.27x = 30,738.73 × 8,651.80
  4. Step 4: Simplify right side
    20,501.27x = 265,945,344.21
  5. Step 5: Solve for x
    x = 265,945,344.21/20,501.27
  6. Step 6: Final answer
    x = 12,972.14

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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.