Home / 19,082.40-28,634.40-13,243.20

Finding the Fourth Proportional to 19,082.40, 28,634.40 and 13,243.20

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Solution

The fourth proportional to 19,082.40, 28,634.40 and 13,243.20 is: 19,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,082.40 : 28,634.40 = 13,243.20 : x
  2. Step 2: Convert to fraction form
    19,082.40/28,634.40 = 13,243.20/x
  3. Step 3: Cross multiply
    19,082.40x = 28,634.40 × 13,243.20
  4. Step 4: Simplify right side
    19,082.40x = 379,211,086.08
  5. Step 5: Solve for x
    x = 379,211,086.08/19,082.40
  6. Step 6: Final answer
    x = 19,872.30

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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.