Home / 20,373.06-30,580.20-10,519.38

Finding the Fourth Proportional to 20,373.06, 30,580.20 and 10,519.38

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Solution

The fourth proportional to 20,373.06, 30,580.20 and 10,519.38 is: 15,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.06 : 30,580.20 = 10,519.38 : x
  2. Step 2: Convert to fraction form
    20,373.06/30,580.20 = 10,519.38/x
  3. Step 3: Cross multiply
    20,373.06x = 30,580.20 × 10,519.38
  4. Step 4: Simplify right side
    20,373.06x = 321,684,744.28
  5. Step 5: Solve for x
    x = 321,684,744.28/20,373.06
  6. Step 6: Final answer
    x = 15,789.71

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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.