Home / 20,349.62-28,082.87-11,396.99

Finding the Fourth Proportional to 20,349.62, 28,082.87 and 11,396.99

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Solution

The fourth proportional to 20,349.62, 28,082.87 and 11,396.99 is: 15,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.62 : 28,082.87 = 11,396.99 : x
  2. Step 2: Convert to fraction form
    20,349.62/28,082.87 = 11,396.99/x
  3. Step 3: Cross multiply
    20,349.62x = 28,082.87 × 11,396.99
  4. Step 4: Simplify right side
    20,349.62x = 320,060,188.56
  5. Step 5: Solve for x
    x = 320,060,188.56/20,349.62
  6. Step 6: Final answer
    x = 15,728.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.