Home / 19,943.10-29,919.54-10,082.16

Finding the Fourth Proportional to 19,943.10, 29,919.54 and 10,082.16

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Solution

The fourth proportional to 19,943.10, 29,919.54 and 10,082.16 is: 15,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.10 : 29,919.54 = 10,082.16 : x
  2. Step 2: Convert to fraction form
    19,943.10/29,919.54 = 10,082.16/x
  3. Step 3: Cross multiply
    19,943.10x = 29,919.54 × 10,082.16
  4. Step 4: Simplify right side
    19,943.10x = 301,653,589.41
  5. Step 5: Solve for x
    x = 301,653,589.41/19,943.10
  6. Step 6: Final answer
    x = 15,125.71

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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.