Home / 20,126.27-30,190.21-5,133.77

Finding the Fourth Proportional to 20,126.27, 30,190.21 and 5,133.77

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Solution

The fourth proportional to 20,126.27, 30,190.21 and 5,133.77 is: 7,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.27 : 30,190.21 = 5,133.77 : x
  2. Step 2: Convert to fraction form
    20,126.27/30,190.21 = 5,133.77/x
  3. Step 3: Cross multiply
    20,126.27x = 30,190.21 × 5,133.77
  4. Step 4: Simplify right side
    20,126.27x = 154,989,657.03
  5. Step 5: Solve for x
    x = 154,989,657.03/20,126.27
  6. Step 6: Final answer
    x = 7,700.87

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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.