Home / 20,325.12-30,499.34-10,965.12

Finding the Fourth Proportional to 20,325.12, 30,499.34 and 10,965.12

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Solution

The fourth proportional to 20,325.12, 30,499.34 and 10,965.12 is: 16,453.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.12 : 30,499.34 = 10,965.12 : x
  2. Step 2: Convert to fraction form
    20,325.12/30,499.34 = 10,965.12/x
  3. Step 3: Cross multiply
    20,325.12x = 30,499.34 × 10,965.12
  4. Step 4: Simplify right side
    20,325.12x = 334,428,923.02
  5. Step 5: Solve for x
    x = 334,428,923.02/20,325.12
  6. Step 6: Final answer
    x = 16,453.97

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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.