Home / 30,082.87-45,074.99-21,302.02

Finding the Fourth Proportional to 30,082.87, 45,074.99 and 21,302.02

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Solution

The fourth proportional to 30,082.87, 45,074.99 and 21,302.02 is: 31,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,082.87 : 45,074.99 = 21,302.02 : x
  2. Step 2: Convert to fraction form
    30,082.87/45,074.99 = 21,302.02/x
  3. Step 3: Cross multiply
    30,082.87x = 45,074.99 × 21,302.02
  4. Step 4: Simplify right side
    30,082.87x = 960,188,231.97
  5. Step 5: Solve for x
    x = 960,188,231.97/30,082.87
  6. Step 6: Final answer
    x = 31,918.11

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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.