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Finding the Fourth Proportional to 43,371.70, 65,082.16 and 19,998.14

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Solution

The fourth proportional to 43,371.70, 65,082.16 and 19,998.14 is: 30,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,371.70 : 65,082.16 = 19,998.14 : x
  2. Step 2: Convert to fraction form
    43,371.70/65,082.16 = 19,998.14/x
  3. Step 3: Cross multiply
    43,371.70x = 65,082.16 × 19,998.14
  4. Step 4: Simplify right side
    43,371.70x = 1,301,522,156.61
  5. Step 5: Solve for x
    x = 1,301,522,156.61/43,371.70
  6. Step 6: Final answer
    x = 30,008.56

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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.