Home / 20,218.47-30,333.17-6,178.12

Finding the Fourth Proportional to 20,218.47, 30,333.17 and 6,178.12

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Solution

The fourth proportional to 20,218.47, 30,333.17 and 6,178.12 is: 9,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.47 : 30,333.17 = 6,178.12 : x
  2. Step 2: Convert to fraction form
    20,218.47/30,333.17 = 6,178.12/x
  3. Step 3: Cross multiply
    20,218.47x = 30,333.17 × 6,178.12
  4. Step 4: Simplify right side
    20,218.47x = 187,401,880.68
  5. Step 5: Solve for x
    x = 187,401,880.68/20,218.47
  6. Step 6: Final answer
    x = 9,268.84

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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.