Home / 20,186.30-30,284.24-6,860.18

Finding the Fourth Proportional to 20,186.30, 30,284.24 and 6,860.18

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Solution

The fourth proportional to 20,186.30, 30,284.24 and 6,860.18 is: 10,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.30 : 30,284.24 = 6,860.18 : x
  2. Step 2: Convert to fraction form
    20,186.30/30,284.24 = 6,860.18/x
  3. Step 3: Cross multiply
    20,186.30x = 30,284.24 × 6,860.18
  4. Step 4: Simplify right side
    20,186.30x = 207,755,151.84
  5. Step 5: Solve for x
    x = 207,755,151.84/20,186.30
  6. Step 6: Final answer
    x = 10,291.89

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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.