Home / 20,190.56-30,274.28-6,146.43

Finding the Fourth Proportional to 20,190.56, 30,274.28 and 6,146.43

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Solution

The fourth proportional to 20,190.56, 30,274.28 and 6,146.43 is: 9,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.56 : 30,274.28 = 6,146.43 : x
  2. Step 2: Convert to fraction form
    20,190.56/30,274.28 = 6,146.43/x
  3. Step 3: Cross multiply
    20,190.56x = 30,274.28 × 6,146.43
  4. Step 4: Simplify right side
    20,190.56x = 186,078,712.09
  5. Step 5: Solve for x
    x = 186,078,712.09/20,190.56
  6. Step 6: Final answer
    x = 9,216.13

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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.