Home / 20,190.76-30,292.76-6,151.36

Finding the Fourth Proportional to 20,190.76, 30,292.76 and 6,151.36

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Solution

The fourth proportional to 20,190.76, 30,292.76 and 6,151.36 is: 9,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.76 : 30,292.76 = 6,151.36 : x
  2. Step 2: Convert to fraction form
    20,190.76/30,292.76 = 6,151.36/x
  3. Step 3: Cross multiply
    20,190.76x = 30,292.76 × 6,151.36
  4. Step 4: Simplify right side
    20,190.76x = 186,341,672.15
  5. Step 5: Solve for x
    x = 186,341,672.15/20,190.76
  6. Step 6: Final answer
    x = 9,229.06

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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.