Home / 20,186.20-30,290.10-9,094.60

Finding the Fourth Proportional to 20,186.20, 30,290.10 and 9,094.60

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Solution

The fourth proportional to 20,186.20, 30,290.10 and 9,094.60 is: 13,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.20 : 30,290.10 = 9,094.60 : x
  2. Step 2: Convert to fraction form
    20,186.20/30,290.10 = 9,094.60/x
  3. Step 3: Cross multiply
    20,186.20x = 30,290.10 × 9,094.60
  4. Step 4: Simplify right side
    20,186.20x = 275,476,343.46
  5. Step 5: Solve for x
    x = 275,476,343.46/20,186.20
  6. Step 6: Final answer
    x = 13,646.77

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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.