Home / 20,178.22-30,284.70-10,825.24

Finding the Fourth Proportional to 20,178.22, 30,284.70 and 10,825.24

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Solution

The fourth proportional to 20,178.22, 30,284.70 and 10,825.24 is: 16,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.22 : 30,284.70 = 10,825.24 : x
  2. Step 2: Convert to fraction form
    20,178.22/30,284.70 = 10,825.24/x
  3. Step 3: Cross multiply
    20,178.22x = 30,284.70 × 10,825.24
  4. Step 4: Simplify right side
    20,178.22x = 327,839,145.83
  5. Step 5: Solve for x
    x = 327,839,145.83/20,178.22
  6. Step 6: Final answer
    x = 16,247.18

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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.