Home / 20,857.13-31,290.83-6,066.18

Finding the Fourth Proportional to 20,857.13, 31,290.83 and 6,066.18

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Solution

The fourth proportional to 20,857.13, 31,290.83 and 6,066.18 is: 9,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857.13 : 31,290.83 = 6,066.18 : x
  2. Step 2: Convert to fraction form
    20,857.13/31,290.83 = 6,066.18/x
  3. Step 3: Cross multiply
    20,857.13x = 31,290.83 × 6,066.18
  4. Step 4: Simplify right side
    20,857.13x = 189,815,799.55
  5. Step 5: Solve for x
    x = 189,815,799.55/20,857.13
  6. Step 6: Final answer
    x = 9,100.76

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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.