Home / 28,082.43-42,122.84-11,438.35

Finding the Fourth Proportional to 28,082.43, 42,122.84 and 11,438.35

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Solution

The fourth proportional to 28,082.43, 42,122.84 and 11,438.35 is: 17,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.43 : 42,122.84 = 11,438.35 : x
  2. Step 2: Convert to fraction form
    28,082.43/42,122.84 = 11,438.35/x
  3. Step 3: Cross multiply
    28,082.43x = 42,122.84 × 11,438.35
  4. Step 4: Simplify right side
    28,082.43x = 481,815,786.91
  5. Step 5: Solve for x
    x = 481,815,786.91/28,082.43
  6. Step 6: Final answer
    x = 17,157.20

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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.