Home / 30,082.94-45,150.33-20,855.42

Finding the Fourth Proportional to 30,082.94, 45,150.33 and 20,855.42

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Solution

The fourth proportional to 30,082.94, 45,150.33 and 20,855.42 is: 31,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,082.94 : 45,150.33 = 20,855.42 : x
  2. Step 2: Convert to fraction form
    30,082.94/45,150.33 = 20,855.42/x
  3. Step 3: Cross multiply
    30,082.94x = 45,150.33 × 20,855.42
  4. Step 4: Simplify right side
    30,082.94x = 941,629,095.29
  5. Step 5: Solve for x
    x = 941,629,095.29/30,082.94
  6. Step 6: Final answer
    x = 31,301.10

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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.